Question

Which equation represents a line that is parallel to the line represented by the equation y=3x-7?
1.) y=-1/3x-10
2.) y=1/3x-10
3.) y= -3x-10
4.) y= 3x-10

Answer 1

Two lines are parallel when the have the same slope
do u know what's the slope of y=3x-7?

Answer 2

no

Answer 3

You mustn't be given this problem without knowing what a "Slope" is.

y = 3x - 7 is in "Point-Slope" form. The slope is there in the formulation.

Answer 4

well a line is written as y=mx+b
where m=the slope and b= the y-intercept so in your case m=slope = 3

Answer 5

so which one of yor options has a slope =3?

Answer 6

3 and 4?

Answer 7

wait 4?

Answer 8

yup number 4 :)
so u understand now?

Answer 9

yes thanks so much!(: