3x = 9y
9y = 3x
y = 3x/9
y = 1/3x
The slope is 1/3
The step 2 because 3 is not multiplying the 1 only the x in the bracket
<span><span>The average rate of change formula is basically the slope formula, where you plug in: f(b)-f(a)/b-a. Then plug in the numbers. [f(0)=1,f(3)=7)]. So, 7-1/3-0. 6/3 is 2 so the average rate of change is 2. And that makes sense because the average rate of change is always the slope, and the slope is 2.</span></span>