Question

dada a função abaixo calcule a raiz

a) f (x)=y=-5x+10

b) f (x)=y= 1-3x

c) f (x)=y= x/2-3

Answer 1

a) y = -5x+10
-5x+10 = 0 ×(-1)
5x-10 = 0
5x = 10
x = 10⁄5
X = 2

b) y = 1-3x
-3x+1 = 0 ×(-1)
3x-1 = 0
3x = 1
X = 1⁄3

c) y = ˣ⁄2 -3
ˣ⁄2 -3 = 0
x -6 = 0
X = 6