### Home > GB8I > Chapter cc46 > Lesson cc46.2.3 > Problem 6-78

6-78.

Serena wanted to examine the graphs of the equations below on her graphing calculator. Rewrite each of the equations in6-78. *y*= form (when the equation is solved for*y*) so that she can enter them into the calculator. 6-78 HW eTool (Desmos). Homework Help ✎5 −(

*y*− 2) = 3*x*5(

*x*+*y*) = −2

Subtract 5 from both sides of the equation.

−(*y* − 2) = 3*x* − 5

Multiply both sides by −1.

*y* − 2 = −3*x* + 5

Now finish solving for *y* by adding 2 to both sides.

*y* = −3*x* + 7

Multiply (*x* + *y*) by 5.

Use the eTool below to view the graphs of the equations.

Click on the link at right for the full eTool version: Int1 6-78 HW eTool.