Question

Write an equation for the line.

Answer 1

What do you think?

Answer 2

x = -3?

Answer 3

Correct :)

Answer 4

what about these two? i really have no idea... @Astrophysics

Answer 5

To find the slope use:

\[\huge m = \frac{ y_{2}-y _{1} }{ x _{2}-x _{1} }\]

Once you get the slope use the point - slope form:

\[\huge y-y _{1}=m(x-x _{1})\]

Answer 6

And for your second question, set y = 0, and solve for x, for x - intercept :)

Answer 7

ahhh okay ill try and then send you the answers

Answer 8

Take your time ^.^

Answer 9

wait which would be y2?

Answer 10

3?

Answer 11

Yup!

Answer 12

so it would be 3-7

Answer 13

\[(0, 7) \implies (x_1,y_1)\]

\[(5,3) \implies (x_2,y_2)\]

Answer 14

Yeah

Answer 15

so i got -4/5

Answer 16

but i dont think its right

Answer 17

would it be -4/5 +7 ?

Answer 18

It's right, slope can be negative.

Answer 19

Yeah since that's the only option with -4/5 xD

Answer 20

okay :) thanks... now on to the next question

Answer 21

You can either graph it or set y = 0 and solve for x.

Answer 22

how would you solve for x?

Answer 23

Set y = 0, and it's just algebra, meaning isolate x.

Answer 24

\[2x+4y=-10\]

Answer 25

\[2x+4(0) = -10\]

solve for x.

Answer 26

would it be

Answer 27

(0, -5/2)

Answer 28

2 * 0= 0
4 * 2.5 = 10

Answer 29

Don't guess just do it lol

Answer 30

huh?

Answer 31

** 4 * -2.5 = -10

Answer 32

I'm not sure what you're doing, just solve for x :P

Answer 33

because -5/2 = -2.5