Question

convert a line with slope=4 and point (-2,-13) to slope intercept form

Answer 1

slope intercept form is

y = mx + b

m = the slope and b is the y-intercept

substitute it the slope m = 4

the use the point x = -2 and y = -13, substitute them and find the value of b

then put that back into the equation.

Answer 2

so it would be y=-8+-13?

Answer 3

not quite

-13 = 4*(-2) + b

Answer 4

okay so would we do -13=-8 and do add 13 to -8?

Answer 5

well its -13 = -8 + b

whats the value of b

Answer 6

-5?

Answer 7

so now you need the equation in the form

y = mx + b

you know m and just found b... substitute them for the answer

Answer 8

4+-5=-1 so -1 is the answer?

Answer 9

nope leave x and y as letters just put in m = 4 and b = -5

what do you think it might be

Answer 10

y=4x+-5?

Answer 11

thats it.... but you only need 1 operator

y = 4x - 5

Answer 12

thank you soo much!! :)