Question

What is the graph of the equation?
-5x+y=-3

I don't know what to do, help?

Answer 1

You can give any arbitrary number to "x" and solve for "y", for at least two points on the graph, if you join the points you'll obtain the graph of that line.

Answer 2

I'm sorry could you explain just a bit more? if thats possible

Answer 3

I can use -5 for x right? But how would i go about solving y..
Thank you btw I'm sorry im so confused haha

Answer 4

Say for instance,
We consider x=-5, then:
\[-5(-5)+y=-3\]
Now, we just operate:
\[25+y=-3\]
\[y=-28\]
So, therefore, the point "w", as we can call it, belongs in the line whose equation is given, if you represent this point on the cartesian plane, and repeat the process for another value of "x", then join the points, you'll obtain the graph of the line.
\[w(-5,-28)\]

Answer 5

-5x + y = -3

Answer 6

another more direct approach
let y be the subject

Answer 7

Have you learned the form

y = mx + b

Answer 8

Yes.

Answer 9

y = 5x -3

Answer 10

when x = 0 y = -3

Answer 11

I added 5x to both sides :-)

Answer 12

Would it be positive or negative?

Answer 13

Does that make sense?

Answer 14

Yes it does, I have 2 answer choices that could work i just need to figure out if its negative or positive

Answer 15

5x + (-5x) = 0

Answer 16

ok i'll tell a simpler way

Answer 17

please

Answer 18

What do you want to know is positive or negative?

Answer 19

The line on the graph

Answer 20

The slope is positive because the 5 in 5x is positive.

Answer 21

if u have something like this-

ax+by=c

then just divide all over by c
\[\frac{ ax }{ c }+\frac{ by }{ c }=\frac{ c }{ c }\]\[\frac{ x }{ \frac{ c}{ a }}+ \frac{ y }{ \frac{ c }{ b } }=1\]

calculate c/a and c/b

and (c/a, 0)=point where the graph cuts x axis

(0,c/b)=point where graph cuts y axis


so basically just identify a,b,c and then find the points
then join them
and thats ur graph

Answer 22

Do you understand what slope is?

Answer 23

@mickey1513 did u get my method?

Answer 24

So, its going to be positive

Answer 25

yay it was right. thank you i get it now
all of you deserve medals

Answer 26

well thr best way was like what owl said

u jst take some random value of x and get y and plot that point
then u take another random value of x and put it in equation nd get y and pot this point
and then join these 2 points

Answer 27

Thanks for asking :-)