britt70 britt70
  • 02-05-2017
  • Mathematics
contestada

Given the function f(x)=-2x^2+4x-7, find f(-4)

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cateburnett612
cateburnett612 cateburnett612
  • 02-05-2017
Let's begin by evaluating f(x) using the value of 3:    f(x) = 2x2 - 4x - 4 (original function)    f(3) = 2(3)2 - 4(3) - 4 (plugging in 3 for x)    f(3) = 2 (computed result) Now let's evaluate g(x) using the value of 3:    g(x) = 4x - 7 (original function)    g(x) = 4(3) - 7 (plugging in 3 for x)    g(x) = 5 (computed result) Finally, we'll sum our results:    (f + g)(3) = 2 + 3 (add f(3) and g(3))    (f + g)(3) = 5 (final answer)
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snorlaxventures
snorlaxventures snorlaxventures
  • 02-05-2017
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