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

well what is it? plug in points ;)

Answer 2

y = 5x - 3

Answer 3

try again ??

Answer 4

clue what is the point (0,c) on this line ?

Answer 5

just plugin the point as @RONNCC said see which equation gets satisfied

Answer 6

y = 5x + 3

Answer 7

1=5*4+3
1=20+3
1=23

nice :)

Answer 8

dont tell anyone !! ;)

Answer 9

was that it ?

Answer 10

do you think 1=23

Answer 11

idk

Answer 12

geometry

Answer 13

the only way i know is \[y-(y _{1})=m(x-{x _{1})}\] point slope form

Answer 14

this is algebra

Answer 15

not geometry

Answer 16

@ivandelgado just plug in the points

Answer 17

Why not use @jalan's formula? It gives you an equation of a line through a given point (x1, y1) with a given slope (m). Fits your problem perfectly!

So put in 5 for m, and x1=4, y1=1 and see what happens.
Of course, you'll have to shuffle this equation a little to see which of the four options it is...

Answer 18

\[y-(1)={5(x-(4)}\]

Answer 19

y - 1 = 5(x - 4), yes.
Now expand the brackets...

Answer 20

@ivandelgado: we've done all we could to help you out here, I think it's your turn now...

Answer 21

y = 5x - 19

Answer 22

Well done!

Answer 23

And remember that neat little formula y-y1=m(x-x1)...

Answer 24

ok