Find the missing value. Hint: Use the number line to find the missing value. -3=7-?
1 answer:
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Step-by-step explanation:
Substituting into vertex form, the equation is:
y = a(x-3)^2 + 5
The y-intercept is when x=0, so substituting this in,
1=a(0-3)^2 + 5
-4 = 9a
a=-4/9
