STAAR Math Midterm Finals Review

Ishaan started a toy car collection. His grandfather gave him 15 cars to start his collection. He can use his allowance to add 4 cars to his collection every month. Which equation can be used to find y, the total cars in his collection after x months?

• y = 15x - 4

• y = 15x + 4

• y = 4x - 15

• y = 4x + 15

Fill in the blank: The slope of the line in the graph is ____. A) 2 B) 3 C) 4 D) 5

• 2

• 3

• 4

• 5

A scuba diver is diving at a constant rate toward the ocean floor. The equation y = -25x - 17 can be used to represent this situation where y is the depth of the diver in meters below sea level and x is the hours the diver has been in the water. Which statement best describes the depth of the diver, given this equation?

• From a starting position of 17 meters below sea level, the diver is descending 25 meters per hour.

• From a starting position of 25 meters below sea level, the diver is descending 17 meters per hour.

• From a starting position of 17 meters above sea level, the diver is ascending 25 meters per hour.

• From a starting position of 25 meters above sea level, the diver is ascending 17 meters per hour.

Fill in the blank: The equation y = -25x - 17 represents a scuba diver's depth. The diver starts at a depth of ___ meters below sea level.

• 17

• 25

• 0

• -17

What is the y-intercept of the line in the graph?

• A) 3

• B) -3

• C) 0

What is the equation of the line shown in the image?

• y = -2/3x - 3

• y = 2/3x + 3

• y = -3/2x + 3

• y = 3/2x - 3

A fish market sells salmon with a 40% markup. If the store manager paid $12 per pound for the salmon, what is the price per pound that he will sell it for?

• $48.00

• $16.80

• $12.40

• $16.00

Which situation could be represented by this equation? 345 + 23x = 677

• A) Paulina is reading a book with 345 pages total. If she reads 23 pages a day for x days, she will have 677 left to read.

• B) Paulina is reading a book with 677 pages total. If she has already read 345 and plans to read 23 pages a day, how many days, x, will she need to read at that pace until she finishes the entire book?

Which equation is true when b = 2?

• 12 + 3b = -24

• 9 - 6b = 3

• 4(b + 3) = 20

• 22 - 2b = 15

Juan paid $176 for 8 concert tickets. Each ticket costs the same amount, and there were no hidden fees. What was the cost for each individual ticket?

• $168

• $22.00

• $27.50

• $1,408