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2 years ago

Given the function f(x) = 5x^2 - x + 20, find f(3) A) -20 B)-13 C) 62 D) 64

Mathematics

2 answers:

omeli [17]2 years ago

7 0

Given function is f(x)= 5x^2-x+20

f(3) , substitute 3 in place of x

=> f(3)=5(3)^2-3+20

=>f(3)= 45-3+20

=>f(3) = 62

Viktor [21]2 years ago

4 0

<h3>Answer: 62 (choice C)</h3>

Work Shown:

f(x) = 5x^2 - x + 20

f(3) = 5(3)^2 - 3 + 20

f(3) = 5(9) - 3 + 20

f(3) = 45 - 3 + 20

f(3) = 42 + 20

f(3) = 62

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