8.3 notes
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8.3 slope and y intercept
HW pg. 414 #115 1
March 02, 2012
Objective: find and use slope to graph linear equations
Solve for a.
1. a 3 = 5
2. 4a + 4a 7 = 17
3. 5(2a + 4) = 30
4. 8 a = 12 6 Bellwork
8.3 slope and y intercept
HW pg. 414 #115 2
March 02, 2012
page 408 # 3 25 odd
3. (5, 40)5. y = 27.y = 49. y = 611. about 1,064 km13. x y 1 1 0 2 1 3
15. x y 1 2 0 3 1 4
17. x y 1 3 0 1 1 119. x y 1 0 0 0 1 0
21. y = 4x + 16 x y 2 8 0 16 2 24
23. y = (1/2)x 3 x y 2 4 0 3 2 2
25. y = (3/2)x x y 2 3 0 0 2 3
8.3 slope and y intercept
HW pg. 414 #115 3
March 02, 2012
Find the slope of each line.
slope = = riserun slope = = rise
run
8.3 slope and y intercept
HW pg. 414 #115 4
March 02, 2012
Find the slope of the line through C(2, 6) and D(4, 3).
slope = y2 y1x2 x1
Find the slope through V(8, 1) and Q(0, 7)
8.3 slope and y intercept
HW pg. 414 #115 5
March 02, 2012
Find the slope of each line.
8.3 slope and y intercept
HW pg. 414 #115 6
March 02, 2012
y = x + 312
y = mx + b
8.3 slope and y intercept
HW pg. 414 #115 7
March 02, 2012
Graph using slope and yintercept
y = 2x 3
8.3 slope and y intercept
HW pg. 414 #115 8
March 02, 2012
Steps:1. List m and b2. Graph b.3. Use slope (m) to find next point4. Use straight edge to draw line.
y = x + 312
y = mx + b
8.3 slope and y intercept
HW pg. 414 #115 9
March 02, 2012
Graph using slope and yintercept
y = 2x 3
8.3 slope and y intercept
HW pg. 414 #115 10
March 02, 2012
2x 3 = 3y
8.3 slope and y intercept
HW pg. 414 #115 11
March 02, 2012
HW pg 414 # 115
