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What is the equation of the graphed line written in standard form?​

What is the equation of the graphed line written in standard form?​-example-1
User Nahkki
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1 Answer

4 votes

Answer: first option

Explanation:

The equation of the line in Slope-intercept form is:


y=mx+b

Where "m" is the slope and "b" is the y-intercept.

The Standard form of the equation of the line is:


Ax + By = C

Where A is a positive integer, and B, and C are integers.

You can observe in the graph that the line intersects the y-axis at
y=-2, then, "b" is:


b=-2

Find the slope of the line with this formula:


m=(y_2-y_1)/(x_2-x_1)

Choose two points of the line and substitute values.

Points:(-3,0) and (3,-4)

Then:


m=(-4-0)/(3-(-3))=-(2)/(3)

Substituting values into
y=mx+b, you get the equation of the line in Slope-intercept form:


y=-(2)/(3)x+2

To write it in Standard form, make the addition indicated:


y=(-2x+6)/(3)

Multiply both sides of the equation by 3:


3(y)=(3)((-2x+6)/(3))


3y=-2x+6

And finally add 2x to both sides:


2x+3y=-2x+6+2x


2x+3y=6

User Luca Murra
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