Question

What is the equation of the line that passes through the point (4, 1) and has a slope of 5?

y = 5x - 3

y = 5x - 1

y = 5x + 3

y = 5x - 19

Answer 1

which one do you think it is

Answer 2

3rd one

Answer 3

y = 5x + 3

1 = 5(4) + 3 ... Plug in x = 4 and y = 1

1 = 20 + 3

1 = 23

which is false

Answer 4

so it can't be the 3rd one

Answer 5

ok then help plz

Answer 6

y = mx+b

y = 5x + b ... Plug in the given slope m = 5

1 = 5*(4) + b ... Plug in the given point (4,1)

1 = 20 + b

1 - 20 = b

-19 = b

b = -19

So the equation is y = 5x - 19

Answer 7

We can check it

y = 5x - 19

1 = 5(4) - 19

1 = 20 - 19

1 = 1

which is true

Answer 8

yay

Answer 9

glad it's making sense now

Answer 10

thanks

Answer 11

np