Given f(x)=-8x+1 find f(5)

Mathematics

1 answer:

NNADVOKAT [17]3 years ago

7 0

So you plug in 5 for x
-8(5)+1=f(x)
-40+1
-39=f(x)

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a_sh-v [17]

We have that
$y=- x^{2} +36$

we know that
Is the equation of a vertical parabola open down
so
the vertex is a maximum

step 1
convert the equation of the parabola in the vertex form
$y=- x^{2} +36 \\ y-36=- x^{2}$

the vertex (h,k) is the point (0,36)

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see the attached figure

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