From the following two points on a graph, what is the constant of proportionality? (0,0) and (4,1)
1/4
What is the constant of proportionality in the table:
Kennel space to dogs Dogs
20
How do you solve for slope
m = ______
y2-y1 (divided by) x2-x1
or
rise / run
Given slope and y-intercept, write the equation.
m = -3
y-intercept = 4
y = -3x + 4
State the slope and y-intercept from the equation:
y = 2x - 8
m = 2
b: (0 , -8)
What is the constant of proportionality for the graph with the following points? (2,4)(3,6)
What is the constant of proportionality for cost to gallons of gas.
$2.75
Identify the Constant of Proportionality?
slope = 6
Given slope and y-intercept, write the equation.
m = 1/3
b: (0 , -2)
y = 1/3x - 2
State the slope and y-intercept from the graph.
m = 1
b: (0 , 0)
What is the following point on the graph called? (0,0)
Origin
Complete the table given that the relationship is proportional
8 ounces
2/5
Given the point (0,-8) and (4,0) , write the equation in slope intercept form.
y = 2x - 8
Identify the slope and y-intercept of the equation.
y=x+3
slope = 1
y-intercept = 3
What 2 characteristics must a graph have for the relationship to be proportionate?
Go through the origin and must be a straight line.
Which table has a constant of proportionality? Top or bottom?
Bottom
4 eggs per cup
Given slope and the point (4,0), find the y-intercept.
m = -1/2
Y-Intercept is when x = 0 so (0,2)
x | y
4 | 0
2 | 1
0 | 2
Name the coordinates for point B.
(-3, -1)
An investor doubles his money each year. is this a proportion or not?
No
Using the table below how much would 50 pounds of apples cost?
$150
Which table shows a proportional relationship?
A, C, and D
Given the graph, write the equation.
y = 3/2x + 3
Is this graph going to have a positive slope or a negative slope?
y = 3 - 2x
Negative