Is anyone here good at math?

Question

Is anyone here good at math?
can you find the eqation in slope-intercept form for:

is perpendicular to y=7

contains (2,-4)

ive been working on this a long time.

thanks!

Answer 1

y = 7 has zero slope, so the perpendicular line will have infinite slope or a vertical line in the form x = k

now you have the point (2,-4) and the only line x = k that has that point is x = 2, hope this helps

Answer 2

x = 2

Answer 3

ok so lets replace the y=7 with m=7

y=mx + b
-4= -1/7(2) + b you have to do the opposite and make it a negative. If it is already negative make it a positive.
-4= -2/7 + b multiply -1/7 by the 2
subtract the -2/7 on both sides (minus a negative is = to plus a positive)

-3 5/7 = b

so your equation is y= -1/7 - (minus) 3 5/7

I had a test on that 2day. lol

Answer 4

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Answer 5

yes, the answer is x=2. y=7 is a horizontal line intercepting the y axis at 7. the perpindicular to that is a vertical line. since a vertical line touches every y value on a single x value u just need to find the x value. it is 2 because it contains (2,-4)

Answer 6

I think the answer is:
y=mx+b X is 2, and Y is -4
7=m(2)+(-4)
7=m(2)-4
7+4=m(2)
11=m(2)
11=2m
11\2=m

Answer 7

well..........in order to b perpendicular to a horizontal line...the slope would b undefined...
when u use the formula for the slope, y(sub 2) minus y(sub 1) over x(sub 2) minus x(sub 1), you get 8 over 0, which is not solvable...so my answer is x=2, but check with your teacher tomorrow

Answer 8

Hmmm. "Working on this a long time" you say? Or, "typed it into google and it didn't come up, so now I'm here." is more reasonable. Whatever, it isn't solvable with those variables.

Answer 9

im in advacend math SO simple lets see um






























































































































































































so the answer would be 7=5x+3!

Answer 10

Im good at math