Question

Find the missing coordinates (-1,?) for 2x-3y=4

Answer 1

Hi there!

We are asked to find the missing coordinate. Notice that we are given the x-coordinate (-1).

Now, to find the missing coordinate, which is the y-coordinate, I'm going to substitute the x-coordinate into the equation:

`\mapsto\bf{2x-3y=4}`

`\mapsto\bf{2(-1)-3y=4}`

Now, solve for y.

`\mapsto\bf{-2-3y=4}`

Add 2 to both sides

`\mapsto\bf{-3y=4+2}`

`\mapsto\bf{-3y=6}`

The final step is to divide both sides by -3.

`\mapsto\bf{y=-2}`

Therefore, the y-coordinate is y = -2.

-Best wishes!