Vocabulary
Systems
Linear Equations
Grab Bag 1
Grab Bag 2
Statistics & Sequences
100
Is 2d + 5 an expression or an equation?
Expression
100
Solve the following systems of equations using substitution:
x = 6
y = 2x - 3
(6,9)
100
What is the slope of the graph of: y=12x−19?
12
100
Evaluate
x^3 – xy – x/y if x = 2 and y = 1
4
100
Convert 250.25 to a mixed number.
250 1/4
100
Is the sequence arithmetic or geometric?
2, 4, 6, 8, 10, 12
arithmetic
150
Is 5c - 2c = 3c and expression or equation?
Equation
150
How can I use this graph to find the solution to the system of equations?
Find the coordinates of the point of intersection
150
Solve for x.
3 + x = x + 3
x has infinite solutions
150
For 4 hours Sam traveled at 40 miles per hour. Then he increased his speed to 60 miles per hour and drove for another 3 hours. How far did he go in the 7 hours he traveled?
340 mi
150
(0.15)(0.5)
0.075
150
What is the growth factor of the geometric sequence?
4, 12, 36, 108
3
200
Which number is the coefficient in the equation 3x + 6 = 18
3
200
Graphically, the solution to a system of equations is the (x,y) coordinate that is on both lines. Algebraically, we can say the solution is the only value of x and y that make both equations __________________.
True statements.
200
Find the slope of the line passing through the pair of points.
1. (6,4) and (3,7)
-1
200
What are the "like" terms in the expression 6h + 5y - 2y +8
5y and -2y
200
Solve for x : 3(x + 1) = -6
-3
200
There is one measure of center that you can find from a box plot. What is it?
Median
250
Addition and subtraction undo each other. They are examples of _________.
Inverse operations
250
Solve the following systems of equations using substitution:
5x - 2y = 3
y = 2x
(3, 6)
250
Find the x-intercept and y-intercept of the following equation:
2x - 3y = 24
X-int=12
Y-int = -8
250
Simplify:
x + 10 -6(x - 3x) + 4
13x + 14
250
If 200 is increased by 130 percent, what is the resulting number?
460
250
What is the median of this set of numbers?
5, 8, 3, 1, 7, 15, 11
7
300
Write the following sentence as an equation:
Twice a number is 18 more than 5 times a number.
2x = 18 + 5x
300
Solve the following system of equations:
y + 5x = -11
3y + x = 9
(-3, 4)
300
(x+5)/4=7
Solve for x
x = 23
300
Subtract : (9x2-4x+11) - (3x2-2x+2)
6x2-2x+9
300
3 1/ 2 × 6 1/ 3 ÷ 2 1/3 × 1 1/ 3
38/3
300
Name a distribution shape where the mean is equal to the median.
Various: Symmetrical, normal, uniform
350
Simplify: 3y - 9 if y = 3
0
350
Solve:
y=8x+1
y=6x+3
( 1, 9 )
350
Solve for f.
15f−23 = 2(4f+20)
f = 9
350
Solve 5x - 3y = 9 for y.
y = 5/3x - 3
350
The first flock contained 5283 birds. The second flock contained 5 times as many birds. The third flock had twice as many birds as the second flock. How many birds were there in all?
84,528 birds
350
What is the growth factor of the following sequence?24, 12, 6, 3, 1.5
1/2
400
The slope- intercept form of a linear equation is ___________.
1. y=mx+b
400
This is a system of equations. Are there any solutions? Explain.
No solutions because the lines never cross!
400
Solve for k:
4(−2k−8)=6(k+18)
k = -10
400
Solve. 18 - 4k = -10 - 4k
No solution
400
Six times a number is 45 greater than the product of the number and -3. Find the number.
5
400
When do you want to use the median instead of the mean as a measure of center?
When there are outliers or a non-symmetical distribution.
500
In a "left skewed" distribution, where is the tail or the outliers?
The outliers or tail is to the left
500
What is the solution to this system?
2x + 3y = 4
y= 5x - 27
(5,-2)
500
Solve for the variable.
6. F
7. B
500
There are 4 milk chocolates to every 2 dark in a box of chocolates. There are 34 dark chocolates in the box. How many milk chocolates are in the box?
68
500
The number of red frogs exceeded the number of blue frogs by 80. The number of green frogs was 20 less than the number of blue frogs. If there were 120 blue frogs, what was the sum of the reds, the blues, and the greens?
420 frogs
500
You are analyzing a symmetrical distribution. Name the measure of center and the measure of variability that you would use.
Center: Mean
Variability: MAD or standard deviation