Question

Which equations are equations for the line shown?

Choose all answers that are correct.



A.


B.


C.


D.

Answer 1

the graph is the first one. the others are the answer. They are in other already.

Answer 2

damn is hard

Answer 3

ya @josedavid

Answer 4

You want to find the line. Such line has the form: \[y=ax+b\] So now you can make 2 equations with 2 variables, by inputting your coordinates. \[1=a*5+b\]\[-2=a*(-4)+b\] Solve for a and b, and you get the line. Do you know how to solve 2 equations with 2 variables?

Answer 5

no @Tommynaiter

Answer 6

So I would do this by substitution. Here to isolate a or b in the first equation and insert it in the 2nd. Like this:
\[1=5a+b<=>b=1−5a\]

Insert it:
\[−2=-4a+(1−5a)<=>a=1/3\]

Now you have a, and insert it:
\[1=5a+b<=>1=5∗1/3+b<=>b=−2/3\]
So you get the line:
\[y=1/3x−2/3\]

Answer 7

This should be right, made a mistake before. Now this line is the same as one of yours. \[y-1=1/3(x-5) <=>y-1=1/3x-5/3 <=> y=1/3x-2/3\]