3. Let $f(x) = -2x^2 + 4x + 1$ find a. $f(-7)$ b. The difference quotient $\frac{f(x+h)-f(x)}{h}$ (assume $h\neq0$)
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f(-7) = -2(-7)^2 + 4(-7) + 1 f(-7) = -2(49) - 28 + 1 f(-7) = -98 - 28 + 1 f(-7) = -125 Show more…
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