Identify K
Write an equation
Is it proportional?
Solving for X or Y
100
What is the constant of proportionality in this equation?
y = 5x
k=5
100
Write an equation for the proportional relationship shown in the table.
y = 3x
100
Is the equation y = 3x proportional?
Yes
100
The equation y = 5x represents a proportional relationship between x and y. What is the value of y when x is 2?
y = 10
200
What is the constant of proportionality in this equation?
y = 1.5x
k=1.5
200
Write an equation for the proportional relationship shown in the table.
y = 7x
200
Is the equation y = x + 3 proportional?
No
200
The equation y = 5x represents a proportional relationship between x and y. What is the value of x when y is 30?
x = 6
300
What is the constant of proportionality in this equation?
y = 3/4x
300
Write an equation for the proportional relationship shown in the table.
y = 9x
300
Is the equation y = 4.9x + 1 proportional?
No
300
The equation
y = 1/4x
represents a proportional relationship between x and y. What is the value of x when y is 6?
x = 24
400
What is the constant of proportionality?
k = 4
400
Write an equation for the proportional relationship shown in the table.
y = 11.2x
400
Is the equation
y = 1/4x
proportional?
Yes
400
The equation
y = 1/2x
represents a proportional relationship between x and y. What is the value of y when x is 15?
y = 7.5
500
What is the constant of proportionality?
k = 1.8
500
Write an equation for the proportional relationship shown in the table.
y = 3.14x
500
Is the equation y = x proportional?
Yes
500
The equation
y = 3/4x
represents a proportional relationship between x and y. What is the value of x when y is 19?
x = 25.3 (repeating)