Unit Rate
A baker makes 120 cookies in 3 hours.
A) 60 cookies per hour
B) 40 cookies per hour
C) 30 cookies per hour
B) 40 cookies per hour
What is the slope of a line with the equation y=-2x+5?
A) 5
B) -2
C) -2/5
B) -2
What is the equation of a line with a slope of 3 and a y-intercept of (0,-1)
A) y = 3x-1
B) y = -1x+3
C) y = 1/3x - 1
A) y = 3x - 1
A) x = 1
B) x = -1
C) x =11
D) x= -11
C) x = 11
What do we call the intersection point between two lines?
A) origin
B) solution
C) y-intercept
B) solution
A librarian makes $450 in 5 days of work.
A) $90 per day
B) $50 per day
C) $225 per day
A) $90 per day
What is the slope of a line with the equation x=3
A) 3
B) 0
C) undefined
C) undefined
What is the equation of a line that goes through the points (0,3) and (-2,0)?
A) y= 3/2x -2
B) y = 3/2x+3
C) y = 2/3x -2
D) y = 2/3x +3
B) y=3/2x+3
Solve for y: 2y + 3(y-4) = -12
A) no solution
B) infinite solutions
C) 0
C) 0
What types of lines will never intersect?
A) perpendicular
B) parallel
C) infinite
B) parallel
A car travels 60 km in 3 hours
A) 20 km/hr
B) 30 km/hr
C) 40km/2 hr
A) 20 km/hr
What is the slope of a line that goes through (0,3) and (4,0)?
A) -3/4
B) 3/4
C) 4/3
D) -4/3
A) -3/4
What is the equation of a line that goes through (0,0) and (2,8)
A) y = 8x + 2
B) y = 2x + 8
C) y = 4x
C) y = 4x
Solve for p: 2(p-1) = 3p + 4
A) p =1
B) p = -6
C) p = -2
B) p = -6
True or False: If two lines have the same slope, they will NOT have an intersection point
A) True
B) False
A) True
A graph of a proportional relationship goes through the point (0,0) and (7,56). What is the unit rate?
A) 1/8
B) 0
C) 8
What is the slope of the line that goes through (-2,5) and (3,5)?
A) -2/3
B) 0
C) 1
D) undefined
B) 0
Write the equation of a line that goes through (-3,3) and (-2, 4)
A) y = 7x + 4
B) y = 1/5x +2
C) y = x + 6
Solve for x: 3(4x+2) = 3(4x-2)
A) x = -1
B) no solutions
C) infinite solutions
B) no solutions
True or False: If two lines have the same y-intercept but different slopes, they will intersect at the y-intercept.
A) True
B) False
A) True
Two trains are travelling from Charlotte to Durham. Train A has the equation y=25x and Train B has the equation y=30x. Which train is going faster?
A) Train A
B) Train B
B) Train B
What is the slope of a line for the equation: 3x+2y=6
A) 2/3
B) 2
C) 3
D) -3/2
D) -3/2
Jakob plants 40 acres of corn that will yield 300 bushels of corn. Write an equation that shows the relationship between bushels of corn, y, and acres of corn, x.
A) y = 300x + 40
B) y = 40x + 300
C) y = 7.5x
D) y = 75x
C) y = 7.5x
Solve for x: 1/2(x+3) = -1
A) x = 5
B) x = 1/5
C) x = -5
C) x = -5
What is the solution to y=3x - 6 and y = -2x + 4?
A) (2,0)
B) (0,2)
C) (-2,2)
A) (2,0)