If f(x) = (4x-3)^2, then f(-2)=? A: -121 B: -22 C: 22 D: 25 E: 121
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Answer:
Step-by-step explanation:
The standard equation of direct variation is
y = kx
where k = constant of variation
We start with
y = kx
Since we are give one ordered pair, we use its coordinates for x and y, and we solve for k. We are told that when x = 14 ounces, y = $7.
7 = k * 14
k = 7/14
k = 1/2
Now that we know k = 1/2, we can write the direct variation equation: