Question

função do 2 grau f(x)=5x2-10x   x=-2,-1,0,1,2,3

Answer 1

Ola Felipe

f(x) = 5x² - 10x

f(-2) = 5*4 - 10*-2 = 20 + 20 = 40
f(-1) = 5*1 - 10*-1 = 5 + 10 = 15
f(0) = 0
f(1) = 5*1 - 10*1 = -5 
f(2) = 5*4 - 10*2 = 20 - 20 =  0
f(3) = 5*9 - 10*3 = 45 - 30 = 15