Question

Can someone please show me how to answer this question? Please?
Graph the following equations using the point-slope method or intercepts method. (1 pt) Show the steps of the procedure as outlined in the lesson as you graph the lines. (1 pt) Draw your y-intercept in yellow, your other points in red and your line in blue.
9x + 12y= -36

Answer 1

Your choice: point-slope method or intercepts method?

Answer 2

@mathmale which do you think will be easier ?

Answer 3

For 9x + 12y= -36 I'd use the intercept method.

Let x = 0 and find y. Then the y-intercept is the point (0, ? )

Let y = 0 and find x. Then the x-intercept is the point ( ? , 0)

Plot these on coordinate axes and draw a line thru both points.

Answer 4

y-intercept: Let x = 0 and find y.

Letting x=0, 9(0) + 12y = -36. What is y?

Answer 5

24? @mathmale

Answer 6

9(0) + 12y = -36

0 + 12y =- 36

Try again @abbycross167

Answer 7

-24? @Directrix

Answer 8

I think you are adding 12 to -36. That is not what the equation is asking you to do.

12y =- 36

Divide both sides by 12.

What is -36 divided by 12?

Answer 9

-3 @Directrix

Answer 10

Yes. Let me read through the thread to see what we are supposed to do next.

Answer 11

For 9x + 12y= -36 I'd use the intercept method.

Let x = 0 and find y.

Then the y-intercept is the point (0, -3 )

Let y = 0 and find x.

Then the x-intercept is the point ( -4 , 0)

Plot these on coordinate axes and draw a line thru both points.

Answer 12

Click on the pencil and sketch the line in blue.

Recall that two points determine a line.