Question

Which table of ordered pairs, when plotted, will form a straighr line. Select all that applyAnswer D is x y-2 -80 -44 46 8

Answer 1

If the increase or decrease of y value with respect to corresponding x values is uniform, then the values will form a straight line.

SO, the slope must be constant for all the ordered pairs:

A.

`m=(y2-y1)/(x2-x1)=(0+1)/(-1+2)=(1-0)/(0+1)=(6-1)/(5-0)=\text{ 1}`

A is a straight line

B.

`m=(-3-7)/(0+2)\\e(12+3)/(3-0)`

B is not a straight line

C.

`m=(5+3)/(0+4)=(9-5)/(2-0)\\e(12-9)/(5-2)`

C is not a straight line

D.

`m=(-4+8)/(0+2)=(4+4)/(4-0)=(8-4)/(6-4)`

D is a straight line.

Correct options: A and D