Fun with Equations
Who Knows
Math Rocks
Systems
100
Solve: 2x + 2 = 18
x = 8
100
What is the y-intercept?
y=2x-4
-4
100
Find the slope: y = 3x + 5
3
100
What is the solution to the system of equations below?
(3,-1)
200
Solve: 3x + 4 = 7
x = 1
200
Write an equation in slope-intercept form with a slope of -1/2 and a y-intercept of 8.
y=-1/2x + 8
200
What is the standard form of a linear equation?
What is the slope intercept form of a linear equation?
Standard: Ax + By = C
Slope-Intercept: y = mx + b
200
If solving a system by graphing and you end up with parallel lines, what is your solution?
no solution
300
Solve: 3x + 3 - 2x = 21
x = 18
300
Solve: (3x-5)/4 = 5
x = 25/3
300
Solve: (3 - 3x)/7 = 6
x = -13
300
Solve the system:
y=5x
y=-x+30
(5,25)
400
Solve: 4x - 5 - 3x + 2 - 2x = 9
x = -12
400
Simplify: -4(3x - 2) -2(4 + 3x)
-18x
400
Simplify: 22p - 7p + 19 - 15 - 12
15p - 8
400
Solve the system
9x-9y=-9
3x+9y=-15
(-2,-1)
500
Solve: 21 = -x - 12
x = -33
500
solve for x and graph the inequality:
4-2x<-6
x>5
500
Write the slope-intercept form of the linear equation for the line passing through (4,9) (5,4)
y=-5x+29
500
Each small box can hold 20 books and each large box can hold 45 books. There were twice as many large boxes sent as small boxes, which altogether can hold 440 books.
Write a system of equations that could be used to determine the number of small boxes sent and the number of large boxes sent.
20S+45L=440
L=2S