1. Warm up 21
1.) Determine the slope and y intercept of the line y=7x + 6
2.) Determine the slope and the yintercept of the line 7x- 4y=3
3.) Graph y=1/2 x -2

2. 7.6 Finding an Equation of a Line
Objective: To write an equation of a line using the slope intercept equation given an order pair and slope

3. To write an equation given slope “m” and one point (x,y)
Our objective is to find “b” using the equation y=mx+b.
We will first plug in our given values (m, x, y) then solve for b
Once we have b, write the equation in slope-intercept form using the given “m” and the “b” value calculated

4. write an equation of the line given the slope is 3 and the point (-3,-2).
y = mx + b
y = 3x + ?
-2 =
3( )+b -3
-2 = -9 + b
(-3,-2)
7 = b
y = 3x + 7

5. To write an equation given slope “5” and one point (4,2)
y = 5x - 18

6. To write an equation given slope “3” and one point (2,7)
y = 3x + 1

7. write an equation given m = -3 and point (2,7)
(-5,-2)
y = -3x + 13

8. Page 331, 2 –12 even {show solving for “m” and for “b”}