Mathematics: Anyone know how to do this?

Here is the factored polynomial (x^2+9)(x^2-3x-9)=0...

Anyone know how to do this? - id5109217, BOYAWESOME0202

janette32

18.01.2022

Part A) 25

Part B) 225

Step-by-step explanation:

Part A

The slope of the graph gives us the mile per gallon of the car.

Recall that the slope of the graph is rise over run.

$m = \frac{200}{8} = 25$

Therefore car gets 25 miles per gallon

Part B) Since we know the slope of the direct variation line, we substitute into y=kx to get:

y = 25x

To find the number of miles the car travels using 9 gallons, we substitute x=9 to get:

$y = 25 \times 9$

This gives us 225 miles

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