Question

which is an equation in point-slope form of the line that passes through the points (-4,-1) and (5,7)

Answer 1

first find the slope of the line which is y2/y1 / x2-x1 (where (x1,y1) and (x2,y2) are the given points.)

Answer 2

@desiree25 - you have one of the points wrong its (-4,-1) not (-4,1)

Answer 3

so the slope = (7 - (-1)) / (5-(-4) = 9/9 = 1

Answer 4

OH * i got it wrong too
its 8/9 not 1

Answer 5

Sorryyyyyy 1 secc....i have to pit the answer choices

Answer 6

A.y+4=9/8(x+1)
B. y+1=8/9(x+4)
C. y+1=8/7(x+4)
D.y-1=8/9(x-4)

Answer 7

so you rule out A immediately because the slope is 8/9 ot 9/8

Answer 8

the general equation is

y - y1 = m(x - x1)

m = 8/9 so we have

y - y1 = (8/9) ( x - x1)

now all you need do is insert x1 = -4 and y1 = -1 into the above and you'll get the answer

Answer 9

i think its D or B

Answer 10

Remember that 2 negatives together make a plus

Answer 11

- apply the above rule and you'll get the right one

Answer 12

- yes - it is B or D

Answer 13

I think it B

Answer 14

-(-1) = +1

Answer 15

y- (-1) = (8/9) ( x - (-4))
y + 1 = (8/9)( x + 4)

Answer 16

yes B is correct


x - (-1) = x + 1

Answer 17

thxxx

Answer 18

yw brother