Question

Complete the table using the rule y = -2x + 5. Then plot the points on the coordinate plane using a scale of x=1 and y=1

Answer 1

If y = -2x + 5

when x= -2

y = -2(-2) + 5

y = 4 + 5 = 9

when x=-1

y = -2(-1) + 5

y = 2 + 5 = 7

when x = 0

y = -2(0) + 5

y=0+5=5

when

x= 1

y = -2(1) + 5

y = -2 + 5

y=3

when x= 2

y= -2(2) + 5

y=-4+5

y= 1

when x = 3

y = -2(3) + 5

y= -6 + 5

y=-1

when x= 4

y= -2(4) + 5

y = -8 + 5

y=-3

Hence;

x y

-2 9

-1 7

0 5

1 3

2 1

3 -1

4 -3