Quiz about CA 2.5 HW#5 quizizz

Question 1

Average Rate of Change is also known as...

Accepted Answer

slope

Answer

y-intercept

Answer

x-intercept

Answer

linear

Question 2

This is a line that touches the function at 2 given points.

Accepted Answer

secant line

Answer

normal line

Answer

tangent line

Answer

delta line

Question 3

What is the average rate of change of $$f\left(x\right)=x^2+5x$$

over the interval [1, 5]?

Accepted Answer

m_sec = 11

Answer

m_sec = 1/11

Answer

m_sec = 44

Answer

m_sec = 4

Question 4

Find the average rate of change given $$f\left(x\right)=\sqrt[]{x^3-4}$$

over the interval $$2\le x\le5$$

Accepted Answer

m_sec = 3

Answer

m_sec = 1/3

Answer

m_sec = - 1/3

Answer

m_sec = 9

Question 5

Which of the following are ways to find the rate of change?

Accepted Answer

all of the above

Answer

change in y over change in x

Answer

rise over run

Answer

subtract y coordinates over subtract x coordinates

Question 6

Use the given function or the graph to find the average rate of change on the interval $$\left[-1,1\right]$$ .

Accepted Answer

1

Answer

-1

Answer

0.5

Answer

2

Question 7

Find the average rate of change over the given interval.

Accepted Answer

7/3

Answer

4

Answer

7

Answer

3/7

Question 8

A soccer ball is dropped from the top of a gym. It's height $$H$$ in feet is given by the function $$H=-16T^2+125$$ , where $$T$$ is measured in seconds. Find the average speed of the ball for the time interval $$\left[0.5,\ \ 2.5\right]$$ .

Accepted Answer

$$\frac{48ft}{\sec}$$

Answer

$$\frac{16ft}{\sec}$$

Answer

$$\frac{96ft}{\sec}$$

Answer

$$-\frac{96ft}{\sec}$$

Answer

$$-\frac{48ft}{\sec}$$

Question 9

What is the average rate of change from [-7,7]?

Accepted Answer

-5/7

Answer

5/7

Answer

7/5

Answer

1

Question 10

Find the average rate of change from x = 7 to x = 3 on

$$g\left(x\right)=\sqrt[]{15-2x}$$

Accepted Answer

m_sec = - 1/2

Answer

m_sec = - 2

Answer

m_sec = - 3/2

Answer

m_sec = 1/2

Question 11

What is the average rate of change?

Accepted Answer

$$\frac{f\left(x_2\right)-f\left(x_1\right)}{x_2-x_1}$$

Answer

$$\frac{f\left(x_2\right)+f\left(x_1\right)}{x_2+x_1}$$

Answer

$$\frac{x_2-x_1}{f\left(x_2\right)-f\left(x_1\right)}$$

Answer

$$\frac{x_2+x_1}{f\left(x_2\right)+f\left(x_1\right)}$$

CA 2.5 HW#5 quizizz

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