Slope and Y-intercept
In y = mx + b, which letter represents the slope?
m
The slope of a line that goes through (-1, 7) and (3, 9)
What is 1/2?
How do you determine if a pair of numbers is a solution to an equation given its graph?
The point must lie on the line
y = 7x
Positive Slope (Line going up)
A young boy sets various booby traps to fend off two intruders in this film
Home Alone
In y = mx + b, which letter represents the y-intercept?
b
How do you determine if a point is a solution given just the equation.
When substituted in for x and y, the point must lead to a true statement (such as 10 = 10).
y = -3x + 10
Negative slope (Line going down)
What is the name of the candle holder used during Hanukkah
The Menorah
The y-intercept of
y = 3x +12
12
Is x = 2, y = 10 a solution to the equation:
-2x + 4y = 36
Yes
-2(2) + 4(10) = -4 + 40 = 36
y = 56
Horizontal Line
In this holiday film, Will Ferrell tries to find his long gone father and gets attacked by a raccoon in the woods.
Elf
The slope of the equation:
y = -26x + 159
-26
The slope of a line of the equation 4x + 3y = 8
What is -4/3?
Does the point (0, 6) lie on the line: 3x + 5y = 15?
No
3(0) + 5(6) = 30, 30 is not 15
3x + 2y = 90
Negative Slope (Line going down)
What is Mr. Flaherty's favorite holiday movie?
The Polar Express
The slope AND y-intercept of the equation:
y = 35x - 70
Slope: 35, Y-intercept: -70
The slope of every horizontal line
0
Is the point (-8, -2) a solution to the equation:
y = -8
No! y must be equal to -2
x = 2
Vertical Line
What are the three colors on a Kwanzaa kinora?
Red, Green, and Black