Problem Solving with Trend Lines

Quiz
•
Mathematics
•
9th - 12th Grade
•
Hard
Alexis Glenn
Used 8+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
What is the equation for the trend line in slope-intercept form.
y = .25x + .05
y = .05x + .25
y = x + .25
y = 2x + 1.5x + .25
2.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
What does "x" represent in the equation?
Number of years since 1970
Price of gas per gallon
3.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
What does "y" represent in the equation?
Number of years since 1970
Price of gas per gallon
4.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
How can the trend line equation be used to predict the cost of gas per gallon in the year 1992?
Substitute 92 for x in the equation
Substitute 92 for y in the equation
Substitute 22 for x in the equation
Substitute 22 for y in the equation
5.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
Paul want to know when gas would have cost about $1.50 per gallon. What step should he take?
Substitute 1.50 for y in the equation
Add 1.50 to the y-intercept of the equation
Substitute 1.50 for x in the equation
Add 1.50 to the slope of the equation
6.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
Paul want to know when gas would have cost about $1.50 per gallon. What step should he take?
Substitute 1.50 for y in the equation
Add 1.50 to the y-intercept of the equation
Substitute 1.50 for x in the equation
Add 1.50 to the slope of the equation
7.
MULTIPLE CHOICE QUESTION
5 mins • 1 pt
The scatter plot shows the the cost of gas per gallon during certain years.
Use the trend line equation to predict the cost of gas per gallon in 2017.
$3.50
$2.60
$1.70
$4.40
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