Question

graph the equation by plotting three points -5x-3y=-7

Answer 1

can someone please help me

Answer 2

can you change this to
y = mx +b
format ?

the first step is add +5x to both sides.
what do you get ?

Answer 3

10x+2y=-2

Answer 4

phi

Answer 5

remember what we are trying to do: get y by itself. that should be a clue.

-5x-3y=-7

now add +5x to both sides
+5x - 5x - 3y = 5x -7

on the left side you have 5 x's take away 5 x's. how many x's do you have left ?

Answer 6

0x

Answer 7

yes, so
+5x - 5x - 3y = 5x -7
simplifies to
-3y = 5x-7

already this equation looks familiar... but to continue divide both sides (and *all* terms) by -3.

what do you get ? (and you already did this problem, so you should try to get it right)

Answer 8

1y=6x-7

Answer 9

to divide by -3, just write /-3 next to each term in
-3y = 5x-7

can you do that ?

Answer 10

-3y/-3=5x/-3-7/-3

Answer 11

yes, now simplify
-3y/-3 is 1y (because -3/-3 is 1) or just y
5x/-3 is also written as (5/-3) x
and -7/-3 is 7/3

you get
y = (5/-3)x + 7/3
or
y= (-5/3) x + 7/3 both are the same thing.

or using the equation editor
\[ y = \frac{-5}{3} x + \frac{7}{3} \]

Answer 12

didn't you already do this problem ?

Answer 13

yeah

Answer 14

its it going to be the same points

Answer 15

you could find 3 different points... lines have an infinite number of points...
on the other hand, it is easier to use the first 3 you found

Answer 16

this one (-1,4) (2,-1) (5,-6)

Answer 17

yes

Answer 18

thank you could you help me with another one

Answer 19

did you post it ?

Answer 20

im doing it now