Question

Need help with slope. will give medal and fan

Select the proper equation in point-slope form for the given point and slope.

Point: (–3, 7); Slope: 4

Answer 1

@ganeshie8

Answer 2

@Luigi0210

Answer 3

y - y1 = m(x - x1)

point (x1,y1)
slope = m

Answer 4

y - 7 = 4(x - 3)
y - 7 = 4(x + 3)
y + 7 = 4(x + 3)
y + 7 = 4x - 12

Answer 5

those are my options

Answer 6

So using the last post i put up, just put the numbers in, which one matches?

Answer 7

A?

Answer 8

close, y - 7 + 4(x - (-3))

Answer 9

minus a negative will end up in x+3

Answer 10

so B.

Answer 11

yep

Answer 12

can you help with a few more?

Answer 13

ok

Answer 14

Select the proper equation in point-slope form for the given point and slope.

Point: (1, -7); Slope: (-2/3)

Answer 15

It is the exact same thing, what do you think first?

Answer 16

y - y1 = m(x - x1)

Answer 17

ok ill check

Answer 18

m = -2/3
x1 = 1
y1 = -7
remember minus a negative leaves a Plus

Answer 19

so its y - 7 = (-2/3) (x+1)

Answer 20

is it right?

Answer 21

You got a little bit confused with the signs.
Put the numbers in first then deal with the signs.

(y -(-7)) = -2/3 ( x - 1)

Answer 22

oh ok but other than that its right?

Answer 23

Identify the point (x1, y1) from the equation: y - 9 = 3(x + 2)

(-2, 9)
(9, -2)
(2, -9)
(-8, 2)

Answer 24

(y+7) = -2/3 (x - 1)

Answer 25

The next question is again, the exact same question, the equation is in the form

y - y1 = m(x - x1) ---that is all you need to remember

so what is x1 and y1? (x1 , y1)

Answer 26

remember a plus sign is the same as minus a negative for example (x + 3) = (x -(-3))

Answer 27

its C

Answer 28

close again, the general form is
y - y1 = m(x - x1)
y - 9 = 3(x-(-2))

Answer 29

x1 = -2
y1 = +9

Answer 30

so its A. alright thank you for your help.

Answer 31

no prob