Writing Equations with Two Variables

What is the role of the independent variable in an equation with two variables?

• It is always equal to the dependent variable.

• It changes based on the dependent variable.

• It remains constant.

• It represents the cause or what can be changed freely.

How can you determine if an ordered pair is a solution to an equation?

• By checking if the ordered pair is in a table.

• By multiplying the X and Y values.

• By adding the X and Y values together.

• By checking if the ordered pair is on the graph of the equation.

What happens when you connect all the points of solutions on a graph?

• They form a triangle.

• They form a square.

• They form a line.

• They form a circle.

In the taxi fare problem, what does the variable 'C' represent?

• The number of miles traveled.

• The total cost of the taxi ride.

• The number of passengers.

• The speed of the taxi.

If a taxi ride costs $4 plus $1.25 per mile, how much would a 7-mile ride cost?

• $7.25

• $8.50

• $12.75

• $10.00

Complete the table with the given values.

a

b

c

d

e

f

g

h

2

(3.4)

(2.2)

(1,0)

4

1

(4,6)

6

Graph the coordinates from the table in Question 4.

a

b

c

d

(2,2)

(3,4)

(1,0)

(4,6)

• No, (2,2) is not a solution.
• Yes, (2,2) is a solution.

• No, (4,8) is not a solution to the equation.

• Yes, (4,8) is not a solution to the equation.

• No, (3,5) is not a solution to the equation.

• Yes, (3,5) is a solution to the equation.