Question

For the equation y=1-2x,find the value of y when

(a)x=-4,
(b)x=-2,
(c)x=0,
(d)x=2.

Answer 1

Explanation:

1st answer y=1-2×-4

y=1+8

y=9

2nd answer y=1-2×-2

y=1+4

y= 5

3rd answer y=1-2×0

y=1-0

y=1

4th answer y=1-2×2

y=1-4

y=-3