Equations and Inequalities
3x - 2 = 7
x = 3
What is the slope of the line 4x + 2y = 12?
m = -2
x + y = 5
x - y = 1
(3, 2)
Translate .1395 into a percentage.
13.95%
The law that says that a + b = b + a.
Commutative property
2x - 5 > 11
x > 8
Which quadrant is the point (-4, 3) in?
Quadrant II
4 - y = x
2x - 2y = 4
(3, 1)
If the sale price of a hamburger rises from $2.50 to $3.00, what is the percent increase?
20%
The law that says that a(b + c) = ab + ac.
Distributive property
-2x + 9 = 4x
x = 1.5
What is the slope of the line through (24, -19) and (-7, 43)?
m = -2
3x + 2y = 6
3x + y =0
(-2, 6)
At a certain bank, 28% of the employees are women and 65% of all employees contribute to a voluntary retirement plan. Half of the women contribute to a voluntary retirement plan. What is the probability of selecting a randomly chosen employee at this bank who is either a woman or contributes to a voluntary retirement plan?
79%
If a is a number, what is 1/a called?
The reciprocal of a
-|3x + 9| = -6
x = -1, -5
Find the x-intercept of the line through (-2, 5) and (6, 1)
(8, 0)
2x + 5y = 9
3x - 4y = 2
(2, 1)
There are 3 red marbles, 2 blue marbles, 4 yellow marbles, and 1 green marble in a bag. You draw out a 2 marbles at random with replacement. What is the probability of drawing out a red and then a green, in that order?
3%
The test to see if a graph is a function or not.
The vertical line test
|2x + 8| + 4 < 10
-7 < x < -1
Are the following lines parallel, perpendicular, or neither?
-9x + 3y = 10
The line through (6, -4) and (-2, 20)
Neither
The first slope is 3
The second slope is -3
x + 2y + z = 4
2x + y - z = -1
x - y - z = -2
(1, 0, 3)
You roll a fair 10-sided die eight times. What is the probability that you will get at least one even number?
255/256
The property which states that for any number a, a(0) = 0.
The multiplication property of zero