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Vocab/Formulas
More Vocab/Formulas
100
Trina spends a certain amount of money making b bracelets represented by the expression 5b+4. Aaliyah spends a different amount when she makes b bracelets represented by the expression 15b+12.
The cost of making Aaliyah's bracelets is ________ times the cost of Trina's bracelets.
The cost of making Aaliyah's bracelets is 3 times the cost of Trina's bracelets.
100
Select the function that best represents the scenario.
A. Ava is behind on her reading log. She has finished 4 pages, but needs to read 4 more pages each night until Friday in order to finish on time.
B. Ms. Perez shares a fundraiser flyer with 2 students. Each of those students sends it to 2 more people. Then each new person sends it to 2 more people, and the pattern keeps going for several days.
C. Ethan wants to get stronger for basketball season, so he does 20 push-ups every day after school.
Options: y=4+4x y=20x y=2x
A: y=4+4x
B: y=2x
C: y=20x
100
Consider the polynomial function.
f(x)=x(x-4)(x+1)
For what values of x is the function positive? Select two.
a. x<1 b. -1<x<0
c. 0<x<4 d. x>4
b. -1<x<0
d. x>4
100
According to calculations based on the first four tests of the school year, Mena should make a 87 on test number five. Her actual score on the test was a 93. What is the percent of error to the nearest hundredth percent?
6.45%
100
What do the words sum, difference, product, and quotient mean?
Sum = Add, Difference = Subtract, Product = Multiply, Quotient = Divide
100
Zeroes, roots, and solutions is WHAT?
x-intercepts
200
Given the inequality, which three ordered pairs are solutions?
(-1,7) (-5,3) (-7,0) (-3,4) (0,-7)
(-5,3) (-7,0) (-3,4)
200
What is the approximate percentage of left-hand dominant students who reported being from Canada?
29%
200
The function f(t)=100-10t represents the number of gallons of water remaining in a tank after running a sprinkler system for t hours. The function is modeled by the graph.
Based on the scenario, which statement describes domain values of the function?
a. The domain of the function includes all real numbers.
b. The domain of the function includes all real numbers where t<=10
c. The domain of the function includes all whole numbers where t>=0
d. The domain of the function includes all whole numbers where 0\le t\le 10 .
d. The domain of the function includes all whole numbers where 0\le t\le 10 .
200
A community center is making treat bags for a Halloween event.
Each candy bag costs $4 to make.
Each toy bag costs $6 to make.
The volunteers want to prepare no more than 100 bags total.
They can spend at least $520 on supplies.
Which graph represents x, the number of candy bags, and y, the number of toy bags, the volunteers can make?
A
200
What is the slope formula?
{y^2-y^1}/{x^2-x^1}
200
If you were given an equation and you needed the table of points, how would you get there? (Two Steps)
Plug the equation into y=, 2nd Graph
300
7x^2 (x−y^2 )−(20y^3−4)−5y^2 (x^2-4y)+x ^3
8x^2y^2-12x^{2}y^{2}+4
300
What is the rate of change of the graph with the units?
$5 per week
300
Given the function:
What is the range when the domain is {-8, -6, -4, 0, 2}?
{0, 2, 6, 8, 42}
Will be written least to greatest!
300
Emma has a 30-foot wooden plank. She is building a bench that requires several 20-inch pieces.
If x represents the number of 20-inch pieces Emma cuts from the 30-foot plank, which value represents a viable number of pieces she can cut?
18 pieces
300
Athletes are linear because it changes by equal ______ over equal intervals. Gallons of water is exponential because it changes by equal ______ over equal intervals.
differences, factors
300
How do I get the linear, quadratic, and exponential equations from the calculator?
STAT CALC linear: 4, quadratic: 5, exponential 0
400
What are solutions to the inequality 15+3.25x<=60 ? Select two.
13 14 18 16 11
11 and 13
400
The orders from a lunch vendor during the month are shown in the table.
Which statement is true about the lunch vendor sales for the month?
A. The percentage of sales of tuna and bottled water combination was less than 15% of all sales
B. The percentage of sales of a turkey sandwich and soda combination was greater than 25% of all sales
C. The percentage of turkey sandwich sales was less than the percentage of ham sandwiches
A. The percentage of sales of tuna and bottled water combination was less than 15% of all sales
400
Find the average rate of change of x^2+9x-1 from x=0 to x=3.
12
400
What is the smallest integer greater than \sqrt{82} ?
10
400
If two lines cross on the graph, how many solutions?
If the lines never cross, how many solutions?
If the line is on top of one another, how many solutions?
one solution
no solutions
infinitely many solutions
400
What is the formula you need to know when completing the square?
({b}/2)^2
500
Over which interval can you find the solution to the following equation?
8-(x+5)=2(x-1)+2x
A. -3<x<1 B. -2<x<2
C. -5<x<0 D. 4<x<8
B. -2<x<2
500
Use the graph below to select the best answers to the questions below.
The equation for the line of best fit for the data set is: (options: y=-1.17x+57.52, y=-1.17x+40.04, y=-5.78x+57.52, or y=-5.78x+40.04)
The predicted value when x=25 is:
The residual value when x=25 is:
The equation for the line of best fit for the data set is: y=-1.17x+57.52
The predicted value when x=25 is: y=-1.17(25)+57.52=28.27
The residual value when x=25 is: actual-predicted=30-28.27=1.73
500
Consider the two linear functions:
f(x)=-4x+9
Which statement is true?
A. The y intercept of f(x) is less than the y intercept of g(x)
B. The y intercept of f(x) is greater than the y intercept of g(x)
C. The slope of f(x) is equal to the slope of g(x)
D. The slope of f(x) is less than the slope of g(x)
D. The slope of f(x) is less than the slope of g(x)
500
Which statement is true?
A. The area of the rectangle is rational, but the perimeter is irrational.
B. The area of the rectangle is irrational, but the perimeter is rational.
C. Both the area and the perimeter of the rectangle are rational.
D. Both the area and the perimeter of the rectangle are irrational.
D. Both the area and the perimeter of the rectangle are irrational.
500
What is the residual formula?
What is the percent error formula?
residual = observed - predicted
abs{{observed-predicted}/{observed}}*100
500
Label each of the following with its correct form and what it reveals
(x+5)(x-2)
x^2-10x+4
(x+9)^2-121
Factored - x-intercept(s)
Standard - y-intercept
Vertex - maximum/minimum