Question

determine a raiz de cada função afim
a)y=5x-7
b)g(x)=2x-3
d)y=-5x-7

Answer 1

a) 5x - 7 = 0

5x = 7
x = 7/5

b) 2x - 3 = 0
2x = 3 
x = 3/2

c) -5x - 7 = 0
-5x = 7 (-1)
5x = -7
x = -7/5