Question

write an equation in point slope form for the line through the given point with the given slope.
(5,2);m=3
a.y+2=3(x-5)
b.y+2=3x-5
c.y-2=3(x+5)
d.y-2=3(x-5)

Answer 1

my answer was c. i don't know if i am right

Answer 2

that is a formula that goes like this
y -y1 = m(x-x1) or something like this

Answer 3

all you need to do is plug the numbers you have coordinate (5,2) x = 5 y = 2 and m=3

Answer 4

is not C

Answer 5

do you understand, just plug in the numbers in the formula

Answer 6

a little bit

Answer 7

i plug them in but i get wrong answer

Answer 8

y - (2) = 3 (x - (5))

Answer 9

how did get negative ?

Answer 10

not saying u are wrong. i just want to understand

Answer 11

the formula is y - y1 = m(x - x1)

if you would have a coordinate with a negative number for example (-2,-5) then it would turn into positive

y - (-5) = m (x - (-2))

Answer 12

then it would have being y +5 = m (x +2)
do you see it

Answer 13

so everything just goes opposite ?

Answer 14

correct

Answer 15

what happens if its like (-5,2)

Answer 16

then it would be y - (2) = m (x - (-5))
which is y - 2 = m (x +5)

Answer 17

wow okay i understand now. thank you!

Answer 18

you're welcome :)