Slope
2 points
Solving equations
Graphing lines
Intercepts
Potpourri
100
What is the slope of the line:
y=3x+8
3
100
What is the slope between these points?
(7,-2) and (2,4)
m = -6/5
100
Solve the equation for x:
6 = frac{x}{3}
x = 18
100
True or False?
Is this the graph of y=3x+2?
True
100
Find the x-intercept of 3x + 5y = 30
x = 10 or (10, 0)
100
This is the number of US States named after a US President
1 (Washington)
200
What is the slope of the line:
y=-1/5x+9
-1/5
200
What is the equation of the line that contains these points?
(10, -1) and (22, 17)
m = \frac{17-(-1)}{22-10}= = \frac{18}{12} = \frac{3}{2}
y = mx + b
y = \frac{3}{2}x + b
-1 = \frac{3}{2} * 10 + b
b = -16
y = \frac{3}{2}x - 16
200
Solve the equation for y:
12 - 4y=24
y = -3
200
True or False
Is this the graph of
y=-1/2x-4
False
200
Find the y-intercept of y = 5x - 5
b = -5 or (0, -5)
200
This is the number of teams in the NFL
32
300
What is the slope?
2/5
300
What is the equation of the line that contains these points?
(-4, -6) and (11, -21)
m = -1
b = -10
y = -x - 10
300
Solve the equation for p:
4=8p-12
p=2
300
What did the student do incorrectly when graphing
y=-2x+4
The student did the slope incorrectly. They went up 2 and right 1 instead of going down 2 and right 1.
300
Find the y-intercept of 4x - 3y = 24
y = -8 or (0, -8)
300
This is the number of countries in South America
12
400
What is the slope?
Undefined
400
What is the slope between these points?
(8, 11) and (-9, 11)
m = 0
400
Solve the equation for m:
3 = -\frac{m + 2}{6}
m = -20
400
What did George do incorrectly when trying to graph
y=-4+3x?
George mixed up the slope and the y-intercept. The slope should be 3 and the y-intercept should be (0,-4).
400
Find the x-intercept and the y-intercept of
-7x + 14y = -14
x = 2 and y = -1 or (2, 0) and (0, -1)
400
These are the pets that the teachers in 264 have
Ms. Polter has a cat. Ms. Donegan has a rabbit.
500
What is the slope?
-3/4
500
What is the slope between these points?
(-8, -7) and (-29, -34)
m = = \frac{-27}{-21} = \frac{9}{7}
500
Solve the equation for y:
2(y-5)=6
y=8
500
What was the mistake Cindy made while trying to graph
y=-2/3x+4
Cindy made a mistake with the slope. She went down 2 and left 3. She should have gone down 2 and right 3 or up 2 and left 3.
500
Find the x-intercept and y-intercept of
y = 9x
The origin!
500
This is the day of your first Algebra 1 test
Thursday, September 19 (B) and Friday, September 20 (A)