### Quantitative Aptitude

## LOGARITHM MCQs

### Total Questions : 47

**Page 1 of 3 pages**

### How Do You Tell If A Function Is Linear Exponential Or Logarithmic?

If the same number is being added to y, then the function has a constant change and is linear. If the y value is increasing or decreasing by a certain percent, then the function is exponential.

### What Is A Logarithm Curve?

The logarithmic curve is the plot of the logarithmic function (and also that of the exponential function) or its image by a dilatation. NSC: curve with constant sub-tangent.

### What Is The Difference Between Exponential And Log?

The power to which a number, symbol, or expression is to be raised. For example, the 3 in x3 . logarithm: The logarithm of a number is the exponent by which another fixed value, the base, has to be raised to produce that number.

### Who Discovered Logarithms And Decimal Point?

John Napier was a Scottish scholar who is best known for his invention of logarithms, but other mathematical contributions include a mnemonic for formulas used in solving spherical triangles and two formulas known as Napier's analogies.

### How Did Napier Invented Logarithms?

Napier generated numerical entries for a table embodying this relationship. He arranged his table by taking increments of arc Î¸ minute by minute, then listing the sine of each minute of arc, and then its corresponding logarithm.

### How Do You Know If A Graph Is Logarithmic?

The logarithmic function graph passes through the point (1, 0), which is the inverse of (0, 1) for an exponential function. The graph of a logarithmic function has a vertical asymptote at x = 0. The graph of a logarithmic function will decrease from left to right if 0 < b < 1.

### How Was The Logarithm Discovered?

The Scottish mathematician John Napier published his discovery of logarithms in 1614. His purpose was to assist in the multiplication of quantities that were then called sines. The whole sine was the value of the side of a right-angled triangle with a large hypotenuse. (Napier's original hypotenuse was 107.)

### What Are Exponential And Logarithmic Functions?

Logarithmic functions are the inverses of exponential functions. The inverse of the exponential function y = ax is x = ay. The logarithmic function y = logax is defined to be equivalent to the exponential equation x = ay.

### What Are Two Properties Of Logarithmic Equations?

Comparison of Exponent law and Logarithm law:

Properties/Rules | Â Exponents | Logarithms |
---|---|---|

Product Rule | xp.xq = xp+q | loga(mn) = logam + logan |

Quotient Rule | xp/xq = xp-q | loga(m/n) = logam â€“ logan |

Power Rule | (xp)q = xpq | logamn = n logam |

### What Is The Difference Between Linear And Logarithmic Graph?

A logarithmic price scale uses the percentage of change to plot data points, so, the scale prices are not positioned equidistantly. A linear price scale uses an equal value between price scales providing an equal distance between values.

### What Is The Difference Between Logarithmic And Exponential Growth?

The logarithm is the mathematical inverse of the exponential, so while exponential growth starts slowly and then speeds up faster and faster, logarithm growth starts fast and then gets slower and slower.

### Are Logarithms To The Base 10?

In mathematics, the common logarithm is the logarithm with base 10. It is also known as the decadic logarithm and as the decimal logarithm, named after its base, or Briggsian logarithm, after Henry Briggs, an English mathematician who pioneered its use, as well as standard logarithm.

### Can Negatives Be In Logarithms?

You can't take the logarithm of a negative number or of zero. 2. The logarithm of a positive number may be negative or zero. 3.

### How Do You Divide Two Logs With The Same Base?

Division. The rule when you divide two values with the same base is to subtract the exponents. Therefore, the rule for division is to subtract the logarithms. The log of a quotient is the difference of the logs.

### Is The Natural Log Linear?

"The logarithm is non-linear." The logarithm is not even a function R+â†’R+ of vector spaces (by the last Point), so that it is trivially not a linear function.

### What Is The Inverse Of The Logarithmic Function?

An exponential function is the inverse of a logarithmic function.

### Why Are Some Logarithms Undefined?

Log 0 is undefined. It's not a real number, because you can never get zero by raising anything to the power of anything else. You can never reach zero, you can only approach it using an infinitely large and negative power.

### Why Natural Log Is Used In Regression?

In statistics, the natural log can be used to transform data for the following reasons: To make moderately skewed data more normally distributed or to achieve constant variance. To allow data that fall in a curved pattern to be modeled using a straight line (simple linear regression)

### For Which Number Logarithmic Function Is Not Defined?

Â The real logarithmic function logb(x) is defined only for x>0. So the base b logarithm of zero is not defined.

### What Are The 2 Most Common Types Of Logarithms?

There are two types of logarithms:

- Common logarithm: These are known as the base 10 logarithm. It is represented as log10.
- Natural logarithm: These are known as the base e logarithm. It is represented as loge.

### What Happens If The Base Of A Logarithm Is Negative?

For example, if b = -4 and y = 1/2, then b^y = x is equal to the square root of -4. This wouldn't give us any real solutions! So the base CANNOT be negative. Putting together all 3 conclusions, we can say that the base of a logarithm can only be positive numbers excluding 1 i.e. 0 < b < 1 or b > 1.

## Recent Questions

## Q. Bubbles Of Air Rise Up Through Liquids Due To

## Q. In The Binary Numbering System, A (1) Represents A Jumper Be....

## Q. Letter Pair / Group

## Q. Letter Pair / Group

## Q. Odd Pair Of Words

## Q. Odd Pair Of Words

## Q. Odd Pair Of Words

## Q. A What Type Of Mill Has More Than 4 Rolls, Usually In Three ....

## Q. Only Semis , Bars And Slabs Produce In Which Plant,

## Q. Which Process Is A Technique Where A Metal Strip Or Sheet Is....

## Q. What Is The Units Of Rolling Rate ?

## Q. Difference In Length After Rolling (l) And Length Before Rol....

## Q. Coke As Solid Fuel Is Used In Sinter Mix Constitute About â€....

## Q. The Ideal Size Of Sinter Required In Blast Furnace Is â€¦â€¦....

## Q. In The â€¦â€¦â€¦â€¦zone, The Reactions Thermal As Well As Ch....

## Q. â€¦â€¦â€¦.. Can Make Adequate Use Of Almost All The Valuable....

## Q. The Maximum Temp Attained In The Zone Of Combustion Is â€¦â€....

## Q. Interest Of Management Are

## Q. The Expenses Are Divided Into How Many Categories?

## Q. Assets Are Classified Into ______ Major Categories