Question

What is the equation of the following line? Be sure to scroll down first to see all answer options.

Answer 1

http://media.apexlearning.com/Images/200706/30/0b637109-997c-441f-9095-c38f09018348.gif

Answer 2

A.y=1/8x
b y=2x
c y=4x
d y=-1/4x
e y=1/4x
f y=1/8 x

Answer 3

do you know how to find the slope, which is "change in y divided by change in x"
between 2 points ?

Answer 4

its been a while

Answer 5

the two points are (8,2) and (0,0)

the 2nd number in each pair are the y's

first do 2-0
then do 8-0
then divide the change in y (first answer) by the change in x (2nd answer)

Answer 6

ok

Answer 7

can you find the slope?

Answer 8

i can try

Answer 9

first do 2-0
then do 8-0
then divide the change in y (first answer) by the change in x (2nd answer)

Answer 10

i am confused

Answer 11

@Dani_Rose

Answer 12

Slope is
y2-y1/x2 - x1

You want to do 2-0/8-0, which comes out to 2/8 or 1/4.

The equation of a line follows the pattern y = mx + b. M being the slope, b being the y-intercept.

So far your equation is y = 1/4x + b. If you graph this right now, you can see that it goes through the point (8,2) and (0, 0) so you don't have a b. So your equation is y = 1/4x.

Does that make sense?

Answer 13

@okdutchman7

Answer 14

In order to find the equation you must understand the rise and the run. Do you know what they are?

Answer 15

The slope of a line is the change in y over change in x, or (y2 - y1) / (x2 - x1). Just pick two points, any two points, (x1, y1) and (x2, y2), and the slope will be (y2 - y1) / (x2 - x1).

Answer 16

The equation of a line in slope intercept form is y = mx + b, where m is slope and b is the y-intercept. See above for slope. The y-intercept is where the graph intersects the y-axis. In this case the y-intercept is (0,0). Substitute the slope and y-intercept into the equation and you will have the equation of the line.