Y = x+7 (,5) what would be my other number in parenthesis already know 5

The two numbers in the parentheses have to fit the equation and make it

a true statement.

- - The second number is always the value of 'y'. So write the equation down,

with '5' in place of the 'y'.

- - Then solve the equation you get to find out what 'x' must be.

- - The first number in the parentheses is the value you find for 'x'.

Second coordinate is connected with y, so (,5) means y=5

We have to substitute y=5 to y=x+7 to get x

y=x+7

5=x+7 / - 7 subtract 7 both sides

5-7=x

-2=x

Now we know that (-2,5) its the naswer