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100
Five friends plan to attend a painting class and will buy lunch there.
Write the expression that can be used to determine that the total cost for all 5 friends.
5(12+10)
110
100
Solve 4(x+9)=6x – 4.
20
100
Solve
− 1 /4 t =−20
80
100
Determine whether the relation is a function.
Not a function. Input of 3 has two outputs:2 and 4
200
Write the numerical expression represents twenty less than the quotient of eighteen and 13.8?
18/13.8-20
200
Which could be an equation for the graph shown?
|x-2|=5
200
Solve
21/x=14/4
6
200
What is the domain of the relation shown in the graph?
{– 3, – 1, 1, 5}
200
Determine whether each situation represents a discrete or continuous function.
A. The function y = 30.48x converts length from x feet to y centimeters.
B. The function y = 10x represents the number of marbles y in x bags.
continuous
discrete
300
Evaluate
(−3a + 4b) /(2c − 1
when 𝑎 = 4, 𝑏 = 2, and 𝑐 = 3.
-4/5
-.8
300
Solve
(15 + ax)/5=10
for x. Assume that 𝑎≠0.
x=35/a
300
Which equation represents this sentence?
Four times the sum of a number x and a number y is equal to 20.
4(x+y)=20
300
Ronald buys fresh fruit from a fruit stand. Apples cost $5 per pound and peaches cost $6 per pound. He has $60 to spend. The table shows the function relating the number of pounds of apples, x, and the number of pounds of peaches, y, Ronald could purchase. Find the x- and y- intercepts and interpret them in this situation.
The x-intercept shows that if Ronald buys only apples, he can buy 12 pounds. The y-intercept shows that if Ronald buys only peaches, he can buy 10 pounds
300
For
f(x)= (3x)/5 +1, f(–10) =
-5
400
Which expression is equivalent to
(6x^2 – 9x – 24) 2 /3
4x^2-6x-16
400
Solve
(x+15)/10=2/5.
-11
400
The coldest temperature recorded in Alaska was –80°F. This was 10°F warmer than the coldest temperature recorded in Siberia. Which equation can be used to find the coldest temperature recorded in Siberia? What is the coldest temperature recorded in Siberia?
T + 10 = -80
-90
400
For 𝑓(𝑥)= –2𝑥+7, find the value of
𝑓(–1)+𝑓(4).
8
400
Treva was standing on a 3-foot ledge when she tossed a stone into the air. The height of the stone over time is shown in the graph.
After __ seconds the stone is at its relative minimum height of __ feet to the nearest foot.
After __ seconds the stone is at its relative maximum height of __ feet, to the nearest foot.
.9
0
.35
5
500
What is the value of
2^4 + 1/4|9x + 2|
when x = –2?
20
500
Solve
3|y+6|=30.
{-16,4}
500
GEOMETRY The area of a trapezoid is given by the formula
A=1/2ℎ(a+b)
, where h is the height and a and b are the measures of the two bases.
What is the height of a trapezoid with an area of 24 square inches if the two bases measure 4 inches and 6 inches?
4.8
500
The graph of a function is shown.
Does this graph show a function?
Is it linear or nonlinear? Is it continuous or discrete? Where is the line of symmetry?
Function. Linear. Continuous. x=-1
500
Use the graph to estimate the x- and y-intercepts of this function and describe where the function is positive and negative.
x-intercepts: (2, 0), (3, 0), (–2, 0);
y-intercept: (0, 12);
positive: when -2<x<2 and when x>3;
negative: when x< -2 and when 2<x<3