Question

Write an equation in slope-intercept form for a line that passes through the given pair of points.

(4,-7), (-2,-10)

Answer 1

x^1-y^1
x^2-y^2

Answer 2

lol i dont get it

Answer 3

What about this one

Write an equation in slope-intercept form for a line that passes through the given pair of points. (-6,5), (-9,0)

Answer 4

@asib1214 help me lmao

Answer 5

ohhhhh now i get it, thats the formula

Answer 6

first you have to find the slope by using the slope formula...
slope(m) = (y2 - y1) / (x2 - x1)
(4,-7)....x1 = 4 and y1 = -7
(-2,-10)..x2 = -2 and y2 = -10
now we sub
slope(m) = (-10 - (-7) / (-2 - 4)
slope(m) = (-10 + 7) / -6
slope(m) = -3/-6
slope(m) = 1/2

Now use y = mx + b
slope(m) = 1/2
use either of your points...
(4,-7)....x = 4 and y = -7
now we sub
-7 = 1/2(4) + b
-7 = 2 + b
-7 - 2 = b
-9 = b

so your equation is : y = 1/2x - 9
However, we need it in standard form Ax + By = C

y = 1/2x - 9 --- multiply everything by 2
2y = x - 18 -- subtract x from both sides
-x + 2y = -18 -- multiply by -1 to make x positive
x - 2y = 18 <== standard form

Answer 7

lol give me a minute to absorb that

Answer 8

slope(m) = (y2 - y1) / (x2 - x1)
slope(m) = (0 - 5) / (-9 - (-6)
slope(m) = -5/(-9 + 6)
slope(m) = -5/-3
slope(m) = 5/3

Answer 9

oops...you needed it in slope intercept form
so the 1st one is : y = 1/2x - 9

Answer 10

can you do the 2nd one....we already figured the sloep to be 5/3

Answer 11

i actually already knew how to do it, i just needed refresher. But i understand it perfectly now. Thank you very much sir

Answer 12

lol....not a sir...I am a lady

Answer 13

i knew i should have just left it at tyvm and not asume anything...

Answer 14

anyway, tyvm lady/gal/girl/madam which ever you prefer

Answer 15

lol...your very welcome sir :)

Answer 16

One more! I have absolutely no idea how to do this

Solve the equation or formula for the variable specified. .

Answer 17

just realzed that the problem isnt even there...

Answer 18

B = 7a^2b, solve for b