### Home > CC4 > Chapter 7 > Lesson 7.2.1 > Problem 7-89

7-89.

Given the two points (–24, 7) and (30, 25):

*7-89 HW eTool*(Desmos) Homework Help ✎Write the equation of the line passing through the points.

Is (51, 33) also on the same line? Explain your reasoning.

Use the slope-intercept form (*y* = *mx* + *b*). Substitute the slope (*m*), and one point (−24, 7) or (30, 25) for *x* and *y* to solve for *b*.

Use the eTool below for part (b).

Click the link at right for the full version of the eTool: INT1 7-89 HW eTool