Question

The quantity X and Y are connected by the formula Y=7-9x
Find the value of Y where X =0.
Find the value of X where Y=0

Answer 1

Graft the function y = x + 2

Begin by choosing a couple of values for x e.g. -2, -1, 0, 1 and 2 and calculate the corresponding y values.

x y = x + 2 Ordered pair

-2 -2 + 2 = 0 (-2, 0)

-1 -1 + 2 = 1 (-1, 1)

0 0 + 2 = 2 (0, 2)

1 1 + 2 = 3 (1, 3)

2 2 + 2 = 4 (2, 4)

Now you can just plot the five ordered pairs in the coordinate plane

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Answer 2

Step-by-step explanation:

Y=7-9x

if x= 0

y= 7

if y= 0

x= 7/9