Question

Identify the points which of the following coordinate pairs make the equation x - 9y = 12 true?

Show your reasoning.

1. ( 12, 0 )

2. ( 0, 12 )

3. ( 3, -1 )

4. ( 0, - 4/3 )

Answer 1

Explanation:

Because in equation x-9y=12

If we put x=12 and y=0 then it satisfy equation. (12)-9(0)=12

So, (12,0) make equation

(3,-1) also make equation

(3)-9(-1)=12

(0,-4/3) also make equation

Because

0-9(-4/3)=12

Only (0,12) is not making

Beacuse

(0)-9(12) is not equal to 12