### Home > PC > Chapter 1 > Lesson 1.1.1 > Problem 1-7

1-7.

Find the equation of the line that: (Try this using the* **eTool* (Desmos).)

Passes through the points

and .

What are two equation forms for a line?

*y* = m*x* + b where m = slope and b = *y*-intercept

(*y* − *y*_{1}) = m(*x* − *x*_{1}) where m = slope and (*x*_{1}, *y*_{1}) is a point.

How do you find slope from two points?

Is parallel to the result in part (a) but goes through the point

.

What do you know about the slopes of two parallel lines?

Use one of the equation forms in part (a) above to find the equation.

They are the same.