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Choose all the lines that would be parallel to line-2x+3y=12.

Select 2 correct answer(s)
-2x+3y=11
-2x+y=12
3x+2y= -2
y= 2/3x-1
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User Shanker
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1 Answer

3 votes

Answer:

-2x+3y=11 and y= 2/3x-1

Explanation:

As a rule, parallel lines are defined as those that have the same gradient.

As such, the easiest way to solve this problem is to rearrange all possible answers into the form of y = mx + c, where c is a constant, and m is the gradient, and can be easily identified. Hence the original line would be:

-2x + 3y = 12

3y = 12 + 2x

y = 2/3x + 4

We can then continue this process of rearranging the equations through the use of algebra to come up with these answers for the other equations:

-2x + 3y = 11 → y = 2/3x + 11/3

-2x + y = 12 → y = 2x + 12

3x + 2y = -2 → y = - 3/2x - 1

y = 2/3x - 1 → y = 2/3x - 1

Now we can just look for the ones with the same gradient (the number before x) to our original equation (m = 2/3). Hence the lines parallel to -2x + 3y = 12 are:

-2x+3y=11 and y= 2/3x-1

Hope that helps!

User Thilina H
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8.3k points