989 Answered Questions for the topic Functions

For the following exercise, find the average rate of change of each function on the interval specified for real number h in simplest form.a(t) = 1 / t + 4 on [9, 9 + h] The textbook gives the... more

#### Write an equation to represent the exponential function.

For the x-values, it shows the numbers -1, 0, 1, and 2. For the y-values, the numbers are 3/4, 3, 12, and 48. I don’t understand this because I don’t understand what the formula is.

#### Function zero problem

find all rational zeros of this functionf(x) = 3x4 + 16x3 - 59x2 - 400x - 400

#### Find all zeros of the functions

What are all the zeros of these two functions?x(x-3)2(x-3)(x+9)3

#### functions domain and range

For each function below, state domain and range, name the intervals where function is increasing or decreasing, and describe end behavior.f(x) = 1/2 x2y = x2 + 3y = -3x2

10d

#### 3.3 Graphs of Functions

If the CPI for fuel oil stood at 91 at the beginning of 1999, approximately what was it at the beginning of 2000?

14d

#### Direct Variation

A swimmer can cross a lake in 15 minutes and 35 seconds while traveling 3.85 miles per hour. If the swimmer wants to cross the lake in 13 minutes,how fast must he swim?

25d

#### Make an equivalent ratio table for each class to represent its solution. Each table should show at least three equivalent ratios. Make sure to indicate which ratio table belongs to which class.

Two sixth grade science classes are making saltwater solutions. The first class (Class A) is using a ratio of three parts salt to five parts water. The other class (Class B) is using a ratio of two... more

29d

#### Function slope graph

If f(x)=3x+5 and g(x)=9x-2. what is the slope of the graph of the function (f-g)(x)

29d

#### trigonometry functions

if f(x)=cos2x and g(x)=sin2x, what is (f+g)(pie/16)?

29d

11/28/19

#### Function Operations: How do I divide f(x) = 2x^2 + x − 3 by  g(x) = x − 1?

Let f(x) = 2x2 + x − 3 and g(x) = x − 1.Find  and state its domain.The answers are:; domain is the set of all real numbers except 1x − 1; domain is the set of all real numbers; domain is the set of... more

11/21/19

#### Trigonometric Function

Use the​ power-reducing formulas to rewrite the expression as an equivalent expression that does not contain powers of trigonometric functions greater than 1.17sin4x

11/21/19

#### Let y=square root of 1-x Give an equation for: (a) stretched horizontally by a factor 2. (b) compressed horizontally by a factor 2.

if i want to stretch it horizontally by 2 i divide only the x by 2 or all the inner part like (1-x)/2 and for compression the same like i should multiply x only or all of it

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