What's the Slope or Y-Intercept?
What's the slope?
y= 3x + 3
Slope: 3/1
(1,2)
(2,4)
(4,8)
2
Solve by substitution.
x + y = 7
y=5
x = 2
What is happening tonight at the school?
Parent Teacher conference.
Find the Slope using y2 - y1 / x2 - x1
(0,0) (4,5)
m = 5/4
What's the y-intercept?
y= -2x - 3
Y-intercept: (0, -3)
(5,95)
(10,90)
(15, 86)
No solution
Solve by elimination.
x - y = 3
-x +2y = 4
x = 10
y = 7
what can you bring for extra credit?
markers, tissues, paper....
Find the Slope using y2 - y1 / x2 - x1
(2,7) (0,3)
m = 2
What's the slope?
y = -x + 3
Slope: -1/1
How do you find constant rate
dividing in order to find out if it is the same over time.
Solve by Elimination.
8a - 6b = 4
-4a + 3b = -2
Infinitely Many Solutions
What is my favorite color
Green
Find the Slope using y2 - y1 / x2 - x1
(1,9) (0,8)
Slope: 1
What's the slope and the y-intercept?
y=x
Slope: 1/1
Y-intercept: (0,0)
what is the formula we use for slope?
m= (y2-y1)/(x2-x1) and y=mx
Solve by substitution.
2x + y = 14
x = (3y)
y = 2
x = 6
Who is THE best 8th grade math teacher?
Mrs. MO, of course.
Find the Slope using y2 - y1 / x2 - x1
(0,17) (23,40)
Slope = 1