Question

Red kangaroos can reach speeds up to 50 feet per second. Use the linear graph at the left to answer the questions. What is the change in y-values from Point A to Point B? What is the change in x-values from Point A to Point B? What is the rate of change of the linear function in feet per second?

Answer 1

The answers are

50

1

50

Answer 2

we are given points A and B

A=(3,150)

B=(4,200)

we can find points

x1=3 , y1=150

x2=4 , y2=200

(a)

the change in y-values from Point A to Point B is

$=y_2-y_1$

now, we can plug values

$=200-150$

$=50feet$...........Answer

(b)

the change in x-values from Point A to Point B is

$=x_2-x_1$

now, we can plug values

$=4-3$

$=1second$...........Answer

(c)

the rate of change of the linear function in feet per second is

$=\frac{y_2-y_1}{x_2-x_1}$

now, we can plug values

$=\frac{50}{1}feet/sec$

$=50feet/sec$.................Answer