Question

HELLLLP ME PLEASE!!!!!!
if a line with a slope of 4 crosses the y-axis at (0,1), what is the equation of the line?

Answer 1

Well when we write out the equation of the line, we look for 2 things. The slope and the y-intercept. The y-intercept is what the y value will be when x is 0. Are you with me so far?

Answer 2

Yes I guess

Answer 3

So we are going to write it out in the form \[\large y=mx+b\] with m as the slope and b as the y-intercept. What do you think it would look like in this form?

Answer 4

y=m*0+b

Answer 5

Well m is the slope. So it HAS to be 4, right?

Answer 6

ok so slope is 4 but im still confused

Answer 7

Here, let's take out the b for a second. \[\large y=4x\] So what happens when you plug in 0 for x?

Answer 8

Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!
Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!

Answer 9

The choices are
y-4x=1
y+4x=1
x-4y=1
x+4y=1

Answer 10

so is it y+4X=1

Answer 11

Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!
Na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, na, Batman!

Answer 12

@LegendarySadist can you help me out some more

Answer 13

Yes, sorry for the delay. So if we have \[\large y=4x\] what will we get if we plug in 0 for x?

Answer 14

you get babies

Answer 15

just x right because 4*0=0

Answer 16

Yes so \[\large y=4*0\\\large y=0\] So when x is 0, y is 1. That means our y-intercept is 1. So now that we know that, how would we write the equation?

Answer 17

y-4x=1

Answer 18

Yes, that would be it. Good job :)