Question

If p(x) = 5x^2 - 3x + 7, then p(1) equals

(a) -10
(b) 9
(c)-9
(d) 10​

Answer 1

p(x) = 5x² - 3x + 7

p(1) = 5(1)² - 3(1) + 7

p(1) = 5(1) - 3 + 7

p(1) = 5 - 3 + 7

p(1) = 2 + 7

p(1) = 9

$option \: b)9 \: \: is \: the \: correct \: answer$