Linear Functions
Flashcard
•
Mathematics
•
8th Grade
•
Practice Problem
•
Hard
+3
Standards-aligned
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15 questions
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1.
FLASHCARD QUESTION
Front
What is a linear function?
Back
A linear function is a function that graphs to a straight line. It can be expressed in the form y = mx + b, where m is the slope and b is the y-intercept.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
2.
FLASHCARD QUESTION
Front
What does the slope (m) represent in a linear function?
Back
The slope (m) represents the rate of change of the function. It indicates how much y changes for a unit change in x.
Tags
CCSS.8.EE.B.5
3.
FLASHCARD QUESTION
Front
What does the y-intercept (b) represent in a linear function?
Back
The y-intercept (b) is the value of y when x is 0. It represents the starting point of the function on the y-axis.
Tags
CCSS.8.EE.B.6
CCSS.8.F.A.3
4.
FLASHCARD QUESTION
Front
How do you write the equation of a linear function from a word problem?
Back
Identify the fixed costs (y-intercept) and the variable costs (slope) from the problem, then use the form y = mx + b.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
5.
FLASHCARD QUESTION
Front
If Heather charges $12 per hour and $5 to reserve, what is the equation for her total charge?
Back
y = 12x + 5.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
6.
FLASHCARD QUESTION
Front
If Bob saves $40 per month starting with $150, what is the equation for his savings?
Back
y = 40x + 150.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
7.
FLASHCARD QUESTION
Front
What is the equation for a donut shop that charges $6.50 per dozen and gives a $0.75 discount?
Back
y = 6.50x - 0.75.
Tags
CCSS.8.F.B.4
CCSS.HSF.LE.A.2
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