Equations and Inequalities
Systems
Word Problems
Lines, Lines, and Lines
Data Analysis
100
Solve for x: x=2(x-1)+6
x = -4
100
Solve this system of equations: 3x+3y=6 and 2x-3y=4
(2,0)
100
Ms. Sumner is having her lawn mower tuned up. The Sears repairman charges $50 service call plus $35 per hour. Write an equation to represent the money Ms. Sumner will pay depending on the "x" hours the repairman works.
What is y = 35x + 50
100
Find the x intercept of the following line: 8x+2y=-16
What is (-2,0) or -2
100
Based on the box plots, which company has the biggest IQR?
What is company B?
200
Solve for x: 3 - x > 2x - 6
x < 3
200
Solve this system of equations: x=5y and 2x+3y=-13
What is (-5, -1)
200
A student works at a job which plays $5.00 per hour. This week the student also received a bonus of $75. If the total pay for the week was $200, how many hours did the student work?
What is 25 hours
200
Find the x and y intercepts of the following line: 8x+2y=-16
What is (0, -8) or -8
200
What is the approximate median for the number of stocks that company A sold?
What is about 2700? (any number close to that)
300
Solve: 6 < -(-8-2x)
x > -1
300
Solve this system of equations: y = 2x - 3 and -4x + 2y = -6
What is infinite many solutions
300
Joe found that the function C(m) = .34m + 45 is used to find the cost of renting a car for "m" miles driven. What could the 45 represent?
what is the flat rate/initial fee
300
Sheliah knows that the slope of a line is negative. Which one of the following could possibly be the equation of the line?
A. 3x - 5y = 15
B. -x + y = 6
C. y = 4x + 7
D. y = - 7x + 4
What is D? y = -7x + 4
300
What is the median of the following data set?
34, 49, 29, 24, 94, 36, 90, 36
What is 36
400
Solve: 5(x + 4) = 10x + 20 - 5x
infinite many solutions
400
Giselle works as a carpenter and as a blacksmith. She earns $20 per hour as a carpenter and $25 per hour as a blacksmith. Last week, Giselle worked both jobs for a total of 30 hours, and earned a total of $690. How long did Giselle work as a carpenter last week, and how long did she work as a blacksmith?
What is 12 hours as a carpenter and 18 hours as a blacksmith
400
Bobquisha has the function f(t) = 6t + 50 to determine how much it costs to babysit bad children, where t represents the number of hours she has to keep the children. How much will she make if she keeps the bad children for 9 hours?
What is $104?
400
Which of the following lines will have the greatest rate of change? Explain your answer.
A. y = 3x + 4
B 2x - 2y = 6
C. y = 8x - 5
What is C? it is the steepest
400
Jill knows that there is a strong, positive correlation between the number of hours study and your grades in school. Which could be a possible correlation coefficient for this scenario? Explain your answer.
A. -1 B. -0.27 C. 0.27 D. 0.95
What is D? strong positive has to be close to 1
500
Determine if these two sets of equations are equivalent. Explain your answer.
-3x + 12y = 15
7x - 10y = -2
-x + 4y = 5
7x -10y = -2
Yes. (graphs are the same / same solutions)
500
Is the point (-3,2) a solution to the system? Explain your answer.
2y <−12x +4
y <−6x+4
yes (it is in the shaded region)
500
Write an equation/function for the amount that a plumber makes if he charges a $90 service fee and $25 per hour.
What is y = 25x + 90 (any version)
500
Find the y intercept for the line 6x + 3y = -9
What is -3? (0, -3)
500
Describe what a scatter plot with no correlation would look like.
no flow upward or downward (points everywhere)