Answer :
{(- 8, 6), (- 4, 3), (0, 0), (4, - 3)}set of ordered pairs (x, y) could represent a linear function
What is Slope of Line?
The slope of the line is the ratio of the rise to the run, or rise divided by the run. It describes the steepness of line in the coordinate plane.
The slope intercept form of a line is y=mx+b, where m is slope and b is the y intercept.
The slope of line passing through two points (x₁, y₁) and (x₂, y₂) is
m=y₂-y₁/x₂-x₁
Linear function is a function whose graph is a straight line
Slope of a line tells us how steep the line is . Slope of a line is same at all the points.
For option A:
m=1+2/3-1=3/2
m=3/2
m=7-4/8-5=3/3=1
Slopes are not same
For option B:
m=3-6/-3+6=-3/3=-1
m=0-3/0+3=-1
m=-4/3
Slopes are not same
For option C:
m=6-8/-1+2=-2
m=4-6/1=-2
m=-3/2
Slopes are not same
For option D:
m=3-6/-4+8=-3/4
m=-3/4
m=-3/4
Slopes are same at every point, so this set of ordered pairs could represent a linear function
Hence, {(- 8, 6), (- 4, 3), (0, 0), (4, - 3)}set of ordered pairs (x, y) could represent a linear function
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