Question

Red kangaroos can reach speeds up to 50 feet her

Answer 1

Answer: The change in y-values from point A to B = 50

The change in x-values from point A to B = 1

The rate of change of the given function = 50 feet per second

Step-by-step explanation:

From the given graph , the coordinates of point A=(3,150) and B=(4,200)

Now, the change in y-values from point A to B = $200-150=50$

The change in x-values from point A to B = $4-3=1$

The rate of change of function is given by :-

$r=\frac{\text{change in y-values}}{\text{change in x-values}}\\\\\Rightarrow\ r=\frac{50}{1}=50\text{ feet per second}$

Hence, the rate of change of the given function = 50 feet per second

Answer 2

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?  

50

What is the change in x-values from  

Point A to Point B?  

1

What is the rate of change of the linear function?

50

feet per second