Question

Compute the indicated values of the given function:
f(x)=5*x²+2*x+10 ƒ(5), f(12), f(15)

Answer 1

f(5) = 145

f(12) = 754

f(15) = 1165

Explanation:

f(5) = (5)
`5^(2)`+ 2(5) + 10

f(5) = (5)(25) + 10 + 10

f(5) = 125 + 20

f(5) = 145

f(12) = (5)
`12^(2)` + 2(12) + 10

f(12) = (5)(144) + 24 + 10

f(12) = 720 + 34

f(12) = 754

f(15) = (5)
`15^(2)` + 2(15) + 10

f(15) = (5)(225) = 30 + 10

f(15) = 1125 + 40

f(15) = 1165

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Answer 2

145 , 754 , 1165

Explanation:

to evaluate f(5) substitute x = 5 into f(x)

f(5) = 5(5)² + 2(5) + 10 = 5(25) + 10 + 10 = 125 + 20 = 145

to evaluate f(12) substitute x = 12 into f(x)

f(12) = 5(12)² + 2(12) + 10 = 5(144) + 24 + 10 = 720 + 34 = 754

to evaluate f(15) substitute x = 15 into f(x)

f(15) = 5(15)² + 2(15) + 10 = 5(225) + 30 + 10 = 1125 + 40 = 1165