Homework help!!

[sammy101]

Again,i need help with Algebra:rolleyes: ok heres the question

it says to
Write the equations for the horizontal & vertical lines that pass through the given point

i dont understand at all!!:eek:

heres # 13

(7,2)

HELP!!again

[ILoveMyAbbyGirl]

If you want a horizontal line, the Y-intercept will ALWAYS be the same. Graph it to see.

So, for a horizontal like, y must always be the same. So lets make y=4. You would plot (0,4) because that is the y-intercept. That would be your equation-- y=4.

Same for x. X will be a vertical line, because the x-intercept will always be the same. So make x=-2 for example. Make a vertical line, and you will notice that if x=-2, x will ALWAYS be -2 for that line. Your equation would be x=-2.

Remember, a vertical line has a slope of 1/0, and you cannot divide by zero, so a vertical line is undefined.

Hope I helped!

[ILoveMyAbbyGirl]

Ahh wait... I forgot to include the problem... a vertical point from (7,2) would be at 7 (x=7) and the horizontal line would be y=2, so the line would be horizontal at two, and they would meet at the point (7,2)

[sammy101]

oh i see! Thats easy,lol im not very good with Algebra:rolleyes:

[sammy101]

ok i need help again! i get so confused...
:confused:

ok..so how you'd you find y in this problem??? i know how to find X

y=2x+1