Given the polynomial function below, find æ-5).
f(x) = x - 22-7

f(-5)= 28

Step-by-step explanation:

The function is:

f(x)= x^2-2x-7

To find the answer put the value of -5 for all x's.

f(x)= x^2-2x-7

f(-5)=(-5)^2 - 2(-5)-7

f(-5)=25+10-7

f(-5)=35-7

f(-5)= 28 ...

problem:

f(x) = - 2/3x + 5; f(5/2)

substitute 5/2 in for x:

f(5/2) = -2/3(5/2) + 5

simplify the right side:

f(5/2) = -5/3 + 5

f(5/2) = 10/3

f(5/2) = 10/3

i hope this !

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