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MATH SOLVE
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Evaluate f(-4) for f(x)= x^2-3x+9
5 months ago
Q:
Evaluate f(-4) for f(x)= x^2-3x+9
Accepted Solution
A:
f(-4), so 'x' is -4.
f(-4) = (-4)^2 -3(-4) + 9
Simply the equation by following PEMDAS. Remember, a negative times a negative is a positive.
-4f = 16 + 12 + 9
Combine like terms.
-4f = 37
Divide by sides by -4.
f = -37 over 4.
37
4