Real-Life Linear Equations: Write and Graph Them!

A store sells pencils for $0.50 each. Write an equation to represent the total cost (C) of buying x pencils. What is the equation?

• C = 0.25x

• C = x + 0.50

• C = 0.50x

• C = 1.00x + 0.50

The table below shows the number of hours (h) worked and the total pay (P) earned. | Hours (h) | Pay (P) | |-----------|---------| | 1 | 10 | | 2 | 20 | | 3 | 30 | Write an equation that represents the relationship between hours worked and pay earned.

• P = h + 10

• P = 5h

• P = 15h

• P = 10h

A car rental company charges a flat fee of $20 plus $0.15 per mile driven. Write an equation to represent the total cost (C) for renting a car and driving m miles. What is the equation?

• C = 20 - 0.15m

• C = 20 + 0.50m

• C = 0.15 + m

• C = 20 + 0.15m

The graph below shows the relationship between the number of books (b) read and the total points (P) earned. - (1, 5) - (2, 10) - (3, 15) What is the equation that represents this relationship?

• P = 10b

• P = 15 - b

• P = 2b + 3

• P = 5b

A gardener plants flowers in rows. If he plants 4 flowers in each row, write an equation to represent the total number of flowers (F) planted in r rows. What is the equation?

• F = 4r

• F = 4 + r

• F = r + 4

• F = 2r

A school is selling tickets for a play. Each ticket costs $8. Write an equation to represent the total cost (C) of buying t tickets. What is the equation?

• C = t + 8

• C = 8t

• C = 8t + 2

• C = 8 + t

The table below shows the distance (d) traveled over time (t) in hours. | Time (t) | Distance (d) | |----------|--------------| | 1 | 60 | | 2 | 120 | | 3 | 180 | Write an equation that represents the relationship between time and distance.

• d = 30t

• d = 60t

• d = 120t

• d = 60t + 10

A bike rental shop charges a $10 fee plus $2 for each hour rented. Write an equation to represent the total cost (C) for renting a bike for h hours. What is the equation?

• C = 10 - 2h

• C = 2h - 10

• C = 10 + 2h

• C = 10h + 2

The graph shows the relationship between the number of tickets sold (t) and the total revenue (R) generated. - (1, 15) - (2, 30) - (3, 45) What is the equation that represents this relationship?

• R = 15t + 10

• R = 15t

• R = 45t

• R = 30t

A recipe requires 2 cups of flour for every 3 batches of cookies. Write an equation to represent the total cups of flour (F) needed for b batches of cookies. What is the equation?

• F = 3b

• F = (2/3)b

• F = 2b

• F = (3/2)b