Question

PLEASE HELP
I WILL FAN AND METAL PLEASE!

given ABC with A(-4,-2) B(4,4) and C(18,-8)
write and equation of the line containing the altitude that passes through B in standard form.

Answer 1

You could use A,C to write the equation of a line, then check B is on it.

Answer 2

can you help me work it out because i don't understand this at all...

Answer 3

@redcan ^

Answer 4

Which form of the formula of a line do you want to start with?

Answer 5

point slope form? \[y-y_1 = m(x-x_1)\]

Answer 6

um sure

Answer 7

Ok, how do you find m, the slope?

Answer 8

y2-y1/x2-x1 ?

Answer 9

yep, so in our case m = (-2 - 8)/(-4-18) = ?

Answer 10

-3/11?

Answer 11

\[y−y_1=(-3/11)(x−x_1)\]
now sub in y1,x1 from point A of C

Answer 12

*or