Question

Line m has no y-intercept, and its x-intercept is (3, 0). Line n has no x-intercept, and its y-intercept is (0, -4).
what is the equation for line m and n?

Answer 1

May I help?

Answer 2

go for it

Answer 3

Thank you for the medal!

Answer 4

yepp

Answer 5

But I did not solve for anything yet!

Answer 6

Anyway...

Answer 7

alright

Answer 8

Can you describe the status of the first line?

Answer 9

what would be the equatoin in y=mx+b

Answer 10

Good. Nice question.
For the form you wrote, m stands for "slope" and b stands for the intercept with y-axis.
Consequently, no intersection with y, then?

Answer 11

nope so it would be y=x+3 for line m and line n is y=-4x right?

Answer 12

One moment, please.
why you say "y=x+3"?

Answer 13

Then the slope with be 1, and this is not correct because the slope of this line that intercept x-axis at (3,0) and has no intercept with y-axis (i.e parallel to y-axis) is undefined.

Do you follow?

Answer 14

The equation of line m is so simple : just x=3 as this value does not change whatever y-value changes

Answer 15

@quien125

Answer 16

ya i did it it in slope intercept form

Answer 17

Where were you?
I was waiting!

Answer 18

sorry went to the store for my sisters candles for her bday cake

Answer 19

Ok

Answer 20

So we solved for m, right?

Answer 21

yes and n was y=-4x

Answer 22

right in y intercept form

Answer 23

Why y=-4"x"?
what if x changes, does y change?

Answer 24

it doesn't. i just need the equation in yintercept form for both

Answer 25

So it will be just y=-4. Is not it?

Answer 26

but x would need to be included to make it a y=mx+b equation

Answer 27

just after -4

Answer 28

Try this.

Answer 29

You say "but x would need to be included just after -4"!!
Try to put it and see if it satisfy or not.

Answer 30

alright

Answer 31

Of course it will not.
These lines are parallel lines to the x and y-axes, one of them (parallel to x-axis) has zero slope (m=0) and the other (parallel to y-axis) has undefined slope (m=1/0)

Answer 32

oh i see thank you. i see where i went wrong.

Answer 33

Thank you for learning!!

Answer 34

thank you for helping!!

Answer 35

You are welcome!

Answer 36

What site is that? The `2.png` pic.

Answer 37

@3mar . Sorry didn't specify who I am talking to.

Answer 38

Never mind.

Answer 39

It is the coolest platform I have ever seen for graphing and other cool things
https://www.calorful.com/graphing/calculator
Feel free to look around and test your graphs and equations.

Answer 40

@quien125
got the last pic?

Answer 41

Cool xD Thank you! @3mar

Answer 42

Not at all!