Question

Which is the equation of the line?




A.


x – 2y = 6


B.


2x – y = 3


C.


2x + y = –3


D.


x + 2y = –6

Answer 1

alright try to recognize the y intercept then you could narrow down the answer to just one

Answer 2

So it would be C?

Answer 3

actually that narrows it down to 2 answers sorry

Answer 4

so lets work from here

Answer 5

Ok

Answer 6

so we know that our slope has to be positive by observing the graph

Answer 7

It's a and I will tell you how you can find this. Start out with the slope-intercept form of a line: y = mx + b. B is the y-intercept. Look at your graph; where does the line cross the y axis? At -3. So far then we have y = mx - 3. Now to find the slope, start at your y-intercept point (-3) and go up and over enough times to get you to the next point that is on the line but is also at a perfect point. The next time the line goes through at an intersection on the graph is up one unit and two to the right. Rise over run gives a slope of 1/2. The equation now is y = 1/2x - 3. But they do not want a fraction, so they multiply everthing by 2. Now you have x - 2y = 6.

Answer 8

so your answer is d. easy way to solve this one quickly is pick a point on the line and plug it into every equation and whatever equation is equal on both sides is your answer

Answer 9

sorry i was busy working with something else while doing this

Answer 10

Thanks y'all