Number System
If a number can be written as a fraction, it must be what kind of number?
A rational number
2x + 5 = -2 + 4x
x=7/2
y = -4x + 5
If two angles are supplementary then both angles together equal...
180 degrees
If scatter plot points are all over the graph and don't show a general path, it is considered what kind of association?
Nonlinear
The number 3.785858585... is rational because???
It has a repeating pattern.
Find the value of x.
-3(4 + 5x) = -9x
x=-2
What is the slope in this table?
x 2 4 6
y 7 2 -3
-5/2
Angles 1 & 3 are congruent. Angle 1 is 3x - 2 and Angle 3 is -x + 38. What is the value of x?
x = 10
What is a data point called when it is separate from the rest of the data on the graph?
outlier
Simplify 32 x 34
36
How many solutions does this system of equations have?
y = 9x + 2 y = 3x + 2
One solution (x=0)
What is the slope of the line connecting these two points?
(-2, -5) (6, 11)
2
In a set of parallel lines and one transversal how many total angles are created?
8
What kind of relationship would these two variables have on a graph if working a job? (days and money)
positive
What is the standard form of 3.4 x 10-3?
.0034
Solve this inequality.
-6x - 4 < 2(x - 10)
x > 2
Hannah has $20 in her account. She works 20 days each month. Each day she earns $40.
40
Congruent or supplementary (=180)
What kind of relationship would these two variables have if someone is paying a bill each month? (months and money)
Negative
What is the value of the integers that the square root of 20 is between?
9
Will -8 satisfy this inequality?
3x + 5 > x - 2
No.
What is the y-intercept in this story?
Josh doesn't have any baseball cards but decides to collect 10 each week.
0
What does it mean if two angles are congruent?
They are equal.
What makes a good line of best fit? (name at least 2 things)
-follows the path of data -is balanced between all of the points -goes through at least one point