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Mathematics 15 Online
OpenStudy (anonymous):

write the equation of each line in standard form

OpenStudy (anonymous):

slope=2 ; (2,6)

Directrix (directrix):

To get started, apply this to your problem. slope = m = 2 (x1,y1) = (2,6) y - y1 = m( x - x1) Fill in for (x1,y1) and m. Simplify. Post what you get, okay. Then, that result will need to be written in standard form.

Directrix (directrix):

@alijahlee916 What did you get? Or, just post what you have so far so that we can finish this problem. I'll help but you need to participate.

OpenStudy (anonymous):

ok. give me a min. to work it out

Directrix (directrix):

Okay.

OpenStudy (anonymous):

(2-6)=2 idk

Directrix (directrix):

y - y1 = m( x - x1) y - 6 = 2* ( x - 2)

Directrix (directrix):

y - 6 = 2* ( x - 2) y - 6 = 2x - 4 Try your hand at simplifying like terms in the equation, okay?

OpenStudy (anonymous):

I just don't know sorry

Directrix (directrix):

y - 6 = 2x - 4 y = 2x -4 + 6

Directrix (directrix):

y = 2x + 2

Directrix (directrix):

Now, for standard form: Standard Form: the standard form of a line is in the form Ax + By = C where A is a positive integer, and B, and C are integers.

Directrix (directrix):

y = 2x + 2 has to be put in that form. y - 2x = 2 -2x + y = 2 Multiply through by -1 2x - y = -2 -->

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