### Home > CC4 > Chapter 5 > Lesson 5.1.1 > Problem 5-15

5-15.

Write the equation of each line described below. Homework Help ✎

A line with a slope of –2 and

*y*-intercept (0, 7).A line with a slope of –

and *x*-intercept (4, 0).A line perpendicular to the line in part (b) with

*x-*intercept (4, 0).

Remember that Slope-Intercept form is *y* = *mx* + *b*.

Substitute 4 for *x* and 0 for *y*.

0 = −6 + *b*

Solve for *b*.

*b* = 6