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Equations
Variables
Is it True?
Algebra Mystery
100
y = 7x What is y when x = 9?
What is 63
100
The number of pizza's Kyle buys relates to how many people are attending his birthday party. Independent Variable? Dependent Variable?
What is Independent Variable: Number of People/ Dependent Variable: Number of Pizzas
100
Which value makes the equation true?   x-5=23

x=29        x=27      x=28

x=28

100
y = 8x -10 What is y when x= 10?
What is 70
200
y = 6x + 19 What is y when x= 4?
What is 53
200
Kyle is running a race the number of miles he runs is dependent on how many hours he has to run. Independent Variable? Dependent Variable?
What is Independent Variable: Number of Hours/ Dependent Variable: Number of Miles
200

Is this a solution for the equation?   (9,10)

y= x + 1

Yes

200
What the difference between independent and dependent?
What is Independent: In control, Constant Dependent: Depends on the other variable
300
c = 12d + 3 What is d when c = 51
What is 4
300
The price of Kyle's taxi ride changes as they drive more miles. Independent Variable? Dependent Variable?
What is Independent Variable: Miles/ Dependent Variable: Price
300
Which is the solution for this equation?  y=8x

 (40,5)        (5,40)

(5,40)

300

Tonya went to the movies.  She paid $12 for her ticket and $7 more dollars for each snack she bought.  Write an equation that shows the total amount Tonya spent.

12 + 7x=y

400
y = 8x - 7 What is x when y = 33
What is 5
400
Kyle's income (salary) is determined on the amount of education he has received. Independent Variable? Dependent Variable?
What is Independent Variable: Education/ Dependent Variable: Income
400
What is the value of j?     14 + j=20

j=5        j=6      j=10

j=6

400

The temperature rises 25 degrees per hour. Write an equation.

What is T= 25h

500
c = 50 - 2d What is d when c= 44?
What is 3
500
Kyle charges $4 an hour to babysit. Independent Variable? Dependent Variable?
What is Independent Variable: Hour/ Dependent Variable: Money
500

What is the solution for  y= 24/x ?

(4,6)       (8,4)         (6,4)

(6, 4)

500

Marty puts $10 in his piggy bank and then adds $4 each week. Write an equation.

 y= 10 + 4x