### Home > CC4 > Chapter 3 > Lesson 3.1.2 > Problem 3-20

3-20.

Jamila wants to play a game called “Guess My Line”. She gives you the following hints: 3-20 HW eTool (Desmos) Homework Help ✎.

*“Two points on my line are (1, 1) and (2, 4).”*

What is the slope of her line? A graph of the line may help.

What is the

*y‑*intercept of her line?*y*-intercept = (0,−2)What is the equation of her line?

Use the rate of growth and the

*y*-intercept to write an equation for the line.*y = mx + b*

Use the eTool below to complete the graph of the line and help solve each part.

Click the link at right for the full version of the eTool: Int1 3-20 HW eTool.