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Identify the equation of the graph.

A. -6x+3y=12

B. 3y+10=5x

C. 5x+y=10

D. 2y+1=7-x

Identify the equation of the graph. A. -6x+3y=12 B. 3y+10=5x C. 5x+y=10 D. 2y+1=7-x-example-1
User Ljubadr
by
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2 Answers

6 votes

Answer: choice A -6x + 3y = 12

Explanation:

the graph represents the

line y = 2x + 4 because the slope is 2 and the y-intercept is 4

choice A is the equivalent

-6x +3y = 12

-2x +y = 4

y = 2x + 4


from MysticAlanCheng

User Damika
by
8.6k points
3 votes

Answer:

A) -6x+3y = 12

Explanation:

Let's take two points from the straight line.

(-2,0) and (0, 4).

Now

We can find the equation of the line by using the point-slope form of the equation of a line:


\sf y - y_1 = m(x - x_1)

where:

  • (x1, y1) are the coordinates of one of the points on the line (in this case, (-2, 0)),
  • m is the slope of the line.

First, find the slope (m) using the two given points (-2, 0) and (0, 4):


\sf m = (y_2 - y_1)/(x_2 - x_1) = (4 - 0)/(0 - (-2)) = (4)/(2) = 2

Now that we have the slope, we can use one of the points, such as (0,4), in the point-slope form:


\sf y - 4 = 2(x - 0)

Simplify:

y -4 = 2x

Keep the x and y terms in left side and constant on right side,

-2x+y = 4

Since it's not in a options, so

Multiply both sides by 3.

-6x+3y = 12

Therefore, answer is:

A) -6x+3y = 12

User Quy Le
by
8.4k points

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