Question

Which is an equation of the given line in standard form?







A.

–7x + 6y =–11






B.

–6x + 5y = 13






C.

–6x + 7y = 11






D.

–6x +7y =–11

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Answer 1

well, first find the slope.

step #1 find any two points on that line.
step #2 then use the formula y_{2}-y_{1}/x_{2}-x_{1}

Answer 2

is it D

Answer 3

@alivejeremy

Answer 4

uh lol we used to do this
idk how to do this soz

Answer 5

D is wrong.

Answer 6

You can even plug in the points on the line in to the equation to check your answer.

–6x +7y =–11

Plug in (1/2, 2)

-6(1/2) + 7(2) = -11

-3 + 14 = -11

11 = -11

Which is not true.

This method will only help you to eliminate a few answer choices. Some equations can work for the point (1/2, 2). You have to plug in more points into the remaining equations to see which is the correct answer out of them.

Answer 7

There are several equations for straight lines.

I regard y = mx + b as "the slope-intercept form;"
\[y-y _{0}=m(x-x _{0})\] as "point-slope form," and

Answer 8

Ax+By=C as "standard form." Better verify with your teacher which he / she wants from you.

Answer 9

The given diagram is clear and enables one to read off the slope of the line pretty easily. One could also utilize the slope formula to find the slope. The y-intercept appears to be (0, 3/2).

To answer this question you need to choose one of the equations I typed in earlier (above) and substititute the coordinates of the two points marked on the graph: (3,-1) and (1/2, 2). One of the given answer choices is correct only if the given equation is true when the coordinates of these 2 points are substituted into the equation.