180=90+50+x
180=140+x
x=180-140=40
X=40
The scale factor would be 3.5
The vertex-form equation is
y = a(x+1)² -16
Putting in the y-intercept values, we have
-15 = a(0+1)² -16
1 = a . . . . . . . . . . . add 16
Then the x-intercepts can be found where y=0.
0 = (x+1)² -16
16 = (x+1)²
±4 = x+1
x = -1 ± 4 =
{-5, 3}
Answer:
In 2012, the population of a city was 5.72 million.
Step-by-step explanation:
Answer:
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