math 8 q3 review
two-way tables
functions
solving systems
scatter plots
QUESTION
About what percent of 8th graders chose each dessert as their favorite?
ANSWER
Brownies 8%; Cheesecake 21%; Apple Pie 46%; Ice Cream 25%
QUESTION
Solve the system of equations.
ANSWER
QUESTION
What percent of 8th graders said their favorite class was history?
ANSWER
20%
QUESTION
Determine whether each representation below is a function.
ANSWER
A - no; B - yes; C - no
QUESTION
Identify which functions have the highest rate of change and highest initial value.
ANSWER
Highest rate of change - DHighest initial value - B
QUESTION
Name each of the characteristics labeled on the scatter plot.
ANSWER
A - outlier; B - gap; C - cluster
QUESTION
Solve the system of equations.
ANSWER
QUESTION
What percent of people surveyed prefer SUVs?
ANSWER
65%
QUESTION
Identify the relationship shown in the scatter plot.
ANSWER
no relationship
QUESTION
Determine whether each of the following functions are linear or nonlinear.
g(x) = -x² - 15x
ANSWER
A - nonlinear; B - nonlinear; C - linear
QUESTION
What percent of people surveyed like cherry pie with ice cream?
ANSWER
30%
QUESTION
Solve the system of equations.
ANSWER
QUESTION
Write an equation for the line of fit.
ANSWER
y = 6/5x + 64
QUESTION
How much did movie ticket prices increase each decade?
ANSWER
1960s - $0.50; 1970s - $1.001980s - $2.50; 1990s - $1.50
QUESTION
Evaluate the function with the given inputs.
f(x) = 2x² + 5f(20) = _________ f(0) = _________ f(-10) = _________
ANSWER
f(20) = 805; f(0) = 5; f(-10) = 205
QUESTION
Identify the relationship shown in the scatter plot.
ANSWER
nonlinear
QUESTION
How many solutions does the system of equations have?
ANSWER
QUESTION
Solve the system of equations.
ANSWER
QUESTION
Solve the system of equations.
ANSWER
QUESTION
According to the line of fit, how much would 50 lbs of apples cost?
ANSWER
$75
QUESTION
According to the line of fit, how much money is saved after 5 months?
ANSWER
$525
QUESTION
What percent of students surveyed prefer vanilla ice cream?
ANSWER
41%
QUESTION
How many 8th grade students were surveyed?
ANSWER
150
Write a function rule for the table.
QUESTION
f(x) = 2x - 3
ANSWER
M8 Q3 Review
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Transcript
math 8 q3 review
two-way tables
functions
solving systems
scatter plots
QUESTION
About what percent of 8th graders chose each dessert as their favorite?
ANSWER
Brownies 8%; Cheesecake 21%; Apple Pie 46%; Ice Cream 25%
QUESTION
Solve the system of equations.
ANSWER
QUESTION
What percent of 8th graders said their favorite class was history?
ANSWER
20%
QUESTION
Determine whether each representation below is a function.
ANSWER
A - no; B - yes; C - no
QUESTION
Identify which functions have the highest rate of change and highest initial value.
ANSWER
Highest rate of change - DHighest initial value - B
QUESTION
Name each of the characteristics labeled on the scatter plot.
ANSWER
A - outlier; B - gap; C - cluster
QUESTION
Solve the system of equations.
ANSWER
QUESTION
What percent of people surveyed prefer SUVs?
ANSWER
65%
QUESTION
Identify the relationship shown in the scatter plot.
ANSWER
no relationship
QUESTION
Determine whether each of the following functions are linear or nonlinear.
g(x) = -x² - 15x
ANSWER
A - nonlinear; B - nonlinear; C - linear
QUESTION
What percent of people surveyed like cherry pie with ice cream?
ANSWER
30%
QUESTION
Solve the system of equations.
ANSWER
QUESTION
Write an equation for the line of fit.
ANSWER
y = 6/5x + 64
QUESTION
How much did movie ticket prices increase each decade?
ANSWER
1960s - $0.50; 1970s - $1.001980s - $2.50; 1990s - $1.50
QUESTION
Evaluate the function with the given inputs.
f(x) = 2x² + 5f(20) = _________ f(0) = _________ f(-10) = _________
ANSWER
f(20) = 805; f(0) = 5; f(-10) = 205
QUESTION
Identify the relationship shown in the scatter plot.
ANSWER
nonlinear
QUESTION
How many solutions does the system of equations have?
ANSWER
QUESTION
Solve the system of equations.
ANSWER
QUESTION
Solve the system of equations.
ANSWER
QUESTION
According to the line of fit, how much would 50 lbs of apples cost?
ANSWER
$75
QUESTION
According to the line of fit, how much money is saved after 5 months?
ANSWER
$525
QUESTION
What percent of students surveyed prefer vanilla ice cream?
ANSWER
41%
QUESTION
How many 8th grade students were surveyed?
ANSWER
150
Write a function rule for the table.
QUESTION
f(x) = 2x - 3
ANSWER