Write the expression using exponents.
5.8·p·p·p·p·p·p
5.8p6
Tell whether the ratios form a proportion.
33 to 63 and 26 to 42
no
Find the value of x so that the ratios are equivalent.
28 : x and 7 : 8
x = 32
What type relationship will show if the points lie in the shape of a curve.
nonlinear relationship
What relationship will show if the points lie close to a line. As x increases, y increases.
Evaluate the expression when c = 4, d = 6
60d
360
What is the constant in this expression?
5n + 8 - x
8
Find the value of x so that the ratios are equivalent.
1 : 6 and 8 : x
x = 48
Solve the proportion to find the value of x.
26 : 54 and x : 27
x = 13
Which correlation coefficient indicates a stronger relationship: − 0.9 or 0.85?
-0.9
Evaluate the expression when m = 6 and n = 5.
mn – 4 • 2
22
What are the terms in this expression?
4x2 - 5 + 6y
4x2, 5, 6y
Find the value of x so that the ratios are equivalent.
3.5 to 18 and x to 270
x = 52.5
Two out of three vehicles in a parking lot are SUVs. There are 18 SUVs in the parking lot. How many vehicles are in the parking lot?
27 vehicles
If you plot these numbers in a graphing paper, what relationship will it show?
(55, 15) (58, 18) (60, 20) (62, 14) (68, 28) (70, 30) (70, 31) (71, 30) (71, 31)
positive relationship
What is the coefficient in the expression?
7 + x – 1
1
Write the phrase as an expression.
a number y decreased by 10
y - 10
Solve the proportion
Find the value of x so that the ratios are equivalent.
9 to 12 and x to 60
x = 45
Using the same points, what is the gap in these set of Xs and Ys?
(55, 15) (58, 18) (60, 20) (62, 14) (68, 28) (70, 30) (70, 31) (71, 30) (71, 31)
62 to 68
Using the same points, what is the outlier in these set of Xs and Ys?
(55, 15) (58, 18) (60, 20) (62, 14) (68, 28) (70, 30) (70, 31) (71, 30) (71, 31)
(62, 14)
Each student in your class must do 14 homework problems. There are
23 students in the class. How many problems will your teacher have to grade?
322 problems
Write the phrase as an expression.
Then evaluate when x = 2 and y = 10
12 more than the product of 5 and a number x
5x + 12 = 22
You need 3 tickets for one go-kart ride. How many tickets do you need for five go-kart rides?
15 tickets
The table shows the numbers of free throws taken and the numbers of baskets made by members of a basketball team. Use a graphing calculator to find the correlation coefficient.
Free Throws 5 7 8 9 1 5
Baskets Made 3 6 7 8 1 4
.9766
The table shows the numbers of free throws taken and the numbers of baskets made by members of a basketball team. Use a graphing calculator to write an equation of the line of best fit.
Free Throws 5 7 8 9 1 5
Baskets Made 3 6 7 8 1 4
y = 0.90x − 0.43