### Home > AC > Chapter 7 > Lesson 7.3.1 > Problem 7-90

7-90.

Without graphing, identify the slope and

*y*-intercept of each equation below. Homework Help ✎*y*= 3*x*+ 5*y*=*y*= 3*y*= 7 + 4*x*3

*x*+ 4*y*= −4*x*+ 5*y*= 30

See the hint above.

Slope = 3*y*-intercept = (0,5)

This equation is the same as:

*y*-intercept = (0,0)

If there is no *x*-value in the equation, can there be a slope or is it 0?

Slope = 0*y*-intercept = (0,3)

See part (a) and the first hint in the problem.

Solve the equation for *y*. By doing this, you put the equation in *y* = m*x* + b form.

Subtract by 3*x* on each side.

4*y* = −3*x* − 4

Divide by 4 on both sides.

See part (e) and the first hint in the problem.