# What is the average rate of change of f over the interval -7 < or equal to xGive an exact number

What is the average rate of change of f over the interval -7 < or equal to x Give an exact number

$What is the average rate of change of f over the interval -7 < or equal to x Give an exact numbe$

## This Post Has 3 Comments

1. layla07 says:

$\frac{4}{3}$

Step-by-step explanation:

The average rate of change can be found by using the following formula

$\frac{f(x_{2}) - f(x_{1}) }{x_{2} - x_{1}}$

Since the interval goes from -7 to 2, we should find the y-values that correspond to x=-7 and x=2.

By inspection of the graph, we can clearly see that when x is -7, y is -7 as well and when x is 2, y is 5.

Now that we know this, we can simply plug these values into the formula!

$\frac{f(2) - f(-7) }{2 - (-7)} = \frac{5 - (-7)}{2 - (-7)} = \frac{5 +7}{2+7} = \frac{12}{9} = \frac{4}{3}$

Good luck!

2. Thejollyhellhound20 says:

2/9 is the answer on khan for the unit 5 test

Step-by-step explanation:

i checked its correct

3. eduardavezdemel says:

4

Step-by-step explanation:

khan