### Home > APCALC > Chapter 1 > Lesson 1.1.1 > Problem 1-9

1-9.

Now you know *two* general equations used to write the equation of a line:

* y* = *mx* + *b* and *y *= *m*(*x* – *h*) + *k*

Under what circumstances is each equation easier to use? For parts (a) through (c) below, determine which method is best to use with the given information. Then, write the equation of the line. Homework Help ✎

*m*= −and passes through (−6, 2) '

*m*' stands for slope.

'*b*' stands for*y*-intercept.

What information is given?*m*= 3 and*b*= –6passes through (2, 8) and (1, 3)

To find the slope between two points, use: