Answer:
y = 4x² - 4
Step-by-step explanation:
y = a(x - x₁ )(x - x₂)
Plug in the knowns
y = 4(x - 1)(x + 1)
expand
y = 4(x² - 1)
y = 4x² - 4
Okay so we're trying to figure out what m is in this problem, so let's single it out by dividing both sides by -2/3
then m=18
The y intercept is 20 and the slope is 8