
NC.8.F.3 Linear Functions
Quiz by Jo Morrow
Grade 8
Mathematics
North Carolina Standard Course of Study
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8 questions
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- Q1Which of the following represents a linear function?y = |x| + 2y = x^2 + 2y = 3x + 2y = 2^x30sNC.8.F.3
- Q2From the table below, which option shows a linear relationship?x | y---|---1 | 22 | 43 | 64 | 81 | 1, 2 | 4, 3 | 9, 4 | 161 | 3, 2 | 5, 3 | 7, 4 | 91 | 2, 2 | 4, 3 | 6, 4 | 81 | 2, 2 | 5, 3 | 8, 4 | 1130sNC.8.F.3
- Q3Which graph represents a linear function?A curve that passes through the points (0,1) and (1,4)A parabola opening upwards through the point (0,1)A straight line that passes through the points (0,1) and (1,3)A horizontal line that passes through the point (0,2)30sNC.8.F.3
- Q4Look at the equation below. Is it a linear function?y = 5x - 7YesCannot be determinedOnly if x > 0No30sNC.8.F.3
- Q5Which characteristic is unique to linear functions when analyzing their graphs?They approach but never touch the axesThey include peaks and valleysThey always form straight linesThey form circular patterns30sNC.8.F.3
- Q6In a table of values for a function, consecutive y-values increase by the same amount as consecutive x-values increase by 1. Does this table represent a linear function?Only if the y-values are positiveNoOnly if the x-values are positiveYes30sNC.8.F.3
- Q7Which table represents a linear function?x: 1, 2, 3, 4; y: 3, 5, 7, 9x: 1, 2, 3, 4; y: 2, 3, 5, 8x: 1, 2, 3, 4; y: 2, 4, 8, 16x: 1, 2, 3, 4; y: 3, 6, 9, 1230sNC.8.F.3
- Q8Which description correctly identifies a linear function from a graph?A graph with a straight line that slopes upward from left to rightA graph that shows a flat line parallel to the x-axisA graph with a line that curves downward as it moves from left to rightA graph that displays a U-shaped curve30sNC.8.F.3