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On a coordinate plane, a parabola opens up. Solid circles appear on the parabola at (negative 3, 12.5), (negative 2, 5), (negative 1, 0.5), (0, negative 1), (1, 0.5), (2, 5), (3, 12.5).

The graph of f(x) is shown. Estimate f(–3).
f(–3) =

2 Answers

5 votes

Answer:

D. 12.5

Explanation:

User Nullqwerty
by
8.4k points
4 votes

Answer:

12.5

Explanation:

Vetrx is at: (0,-1) because other y values are repeated

y = a(x - 0)² - 1

y = ax² - 1

Using (1,0.5)

0.5 = a(1)² - 1

a = 1.5

f(x) = 1.5x² - 1

f(-3) = 1.5(-3)² - 1

f(-3) = 12.5

User Tarji
by
7.9k points

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