Question

dada a funçao y=5x-2 determine A) o valor de y quando x=2 B) o valor de y quando x=4

Answer 1

A) y=5x-2
A) y=5.2-2
A) y=10-2
A) y=8

B) y=5x-2
B) y=5.4-2
B) y=20-2
B) y=18

Answer 2

A=y=5x-2
y=5×2-2
y=10-2
y=8

B)y=5x-2
y=5×4-2
y=20-2
y=18