Finding Slope
Finding Equations
Y Intercepts
Proportionality
Math Facts
100
What is the equation for slope?
100
What is the equation for Slope-Intercept form?
100
b = -1 (y-intercept)
100
Is this graph proportional or non-proportional?
Non-proportional
100
Solve this,
4- (-3)
7
200
Find the slope of the line between the following two points. (2,4), (6, 6).
m = 1/2 (it must be simplified)
200
Determine the slope and y-intercept of the following equation. y = 3x +5
m = 3 (slope)
b = 5 (y-intercept)
200
You must pay $5 just to enter a parking garage. Then, you pay an additional $2 per hour that you are parked. Write an equation in slope intercept form that represents this linear relationship.
y = 2x + 5
200
Is this equation proportional or non-proportional? Why?
Proportional because it's a straight line that crosses through the origin (0, 0)
200
What variable represents slope? And which variable represents the y-intercept?
slope = m
y-intercept= b
300
Find the slope from the graph.
m = 3
300
Determine the slope and y-intercept of the following equation. y = -x
m = -1 (slope)
b = 0 (y-intercept)
300
b = 4 (y-intercept)
300
Non-proportional
300
Where can you find the y-intercept on a graph?
It's the point where the line crosses the y-axis.
400
Find the Slope
m = 3
400
Find the equation of the line
y = -2x + 5
400
Find the y-intercept
b = 9 (y-intercept)
400
Proportional or Non-proportional?
Proportional
400
How do you find the y-intercept on a table?
Across from wherever x = 0.
500
Find slope
m = -1/2
500
In order to join a movie rental service, there is an initial $35 fee, then a $6 fee every month. Write an equation in slope-intercept form modeling this situation.
y = 6x + 35
500
Find the y-intercept, slope, and equation.
y = -1/3x + 6
500
Proportional or non-proportional? Explain your reasoning.
Non-proportional
500
Explain how you figure out whether a line is proportional from looking at ONLY the table.
You need to set up equivalent ratios. Or you need to find if there is a constant of proportionality that is the same for EACH row of the table (k = y/x).