Question

dada a funcao definida por f(×)=×ao quadrado -7×+10. calcule: f(-2), f(-1),f(1),f(2),f(4)​

Answer 1

f(x) = x² - 7x + 10

f(-2) = (-2)² - 7 * (-2) + 10

f(-2) = 4 + 14 + 10

f(-2) = 28

f(-1) = (-1)² - 7 * (-1) + 10

f(-1) = 1 +7 + 10

f(-1) = 18

f(1) = 1² - (7 * 1) + 10

f(1) = 1 - 7 + 10

f(1) = 4

f(2) = 2² - (7 * 2) + 10

f(2) = 4 - 14 + 10

f(2) = 0

f(4) = 4² - (7 * 4) + 10

f(4) = 16 - 28 + 10

f(4) = -2