STAAR system of equations

Frank and Erica are selling ribbons to raise money for the football team. The graph shows the linear relationship between the number of ribbons each of them has left to sell and the number of days that they have been selling ribbons.

On which day does it appear that Frank and Erica will have the same number of ribbons left to sell?

• Day 15

• Day 48

• Day 33

• Day 18

The graph models the linear relationship between the charge for a trip and the number of miles driven for two taxis.

Based on the graph, which statement appears to be true?

• The charge for a trip with a distance of 5 miles is $5 greater for Taxi 1 than for Taxi 2.

• The charge for a trip with a distance of 5 miles is $5 less for Taxi 1 than for Taxi 2.

• The charge for a trip with a distance of 5 miles is $20 for both Taxi 1 than for Taxi 2.

• The charge for a trip with a distance of 5 miles cannot be determined for either Taxi 1 or Taxi 2.

The two lines graphed on the coordinate grid each represent an equation.

Which ordered pair represents a solution to both equations?

• (-4, 0)

• (-2, 1)

• (0, -4)

• (1, -2)

Tags

CCSS.8.EE.C.8B

^{What is the solution?} 

• 1
• -2
• (1, 2)
• (1, -1)

The linear relationship between the value of two bank accounts and the number of months that have passed since the beginning of the year are graphed as shown. Which statement appears to be true?

• Since Account A started with $800 more than Account B, the accounts were equal at month 8.

• Account A has decreased at a slower rate than Account B has increased.

• Since Account A and B started with different initial amounts, the balances of the two accounts will never be equal.

• Accounts A and B had the same value at month 6.

The graph shows the linear relationship between the total cost of membership for a given number of month's that a customer subscribes to an online food recipe club. Which statement below best describes the graph?

• The cost of membership for Club 1 is always less expensive than for Club 2.

• The cost of membership at 6 months is $10 less for Club 1 than for Club 2

• The cost of membership at 3 months is the same for Club 1 and Club 2.

• The cost of membership at 9 months can not be determined for either Club 1 and Club 2.

The graph shows the relationship between the total cost of a long distance company and the number of minutes that are used. What ordered pair represents the solution to the system of equations

• the intersection point is (7, 50) it means at 50 minutes both companies will charge $7.

• the intersection point is (50, 7) it means it will cost $7 for 50 minutes and Company A and Company B

• the intersection point is (50, 7) it means at 7 minutes both companies will charge $50.

• the intersection point is (7, 50) it means at 7 minutes both companies will charge $50.

The graph shows the relationship between the total cost of a long distance company and the number of minutes that are used. After how many minutes would the total cost for both companies be the same?

• 50 minutes

• 5 minutes

• 7 minutes

• 40 minutes

The graph shows the relationship between the total cost of a long distance company and the number of minutes that are used. How much money will it cost when both you use the same amount of minutes at both companies?

• $7

• $5

• $2

• $50

The graph represents the amount of money Bob and Billy earn each hour by mowing lawns. How much money will they earn when they have worked the same number of hours

• $4

• $40

• $20

• $3