Question

Please help will medal!
An equation is shown below:

9x - y = -2

Part A: Explain how you will show all of the solutions that satisfy this equation. (4 points)

Part B: Determine three different solutions for this equation. (4 points)

Part C: Write an equation that can be paired with the given equation in order to form a system of equations that is inconsistent. (2 points)

Answer 1

@xavierbo2

Answer 2

y=9x+2
plug any value of x, you get corresponding value of y.
you can find infinite values

Answer 3

I don't understand

Answer 4

let x=0
y=9*0+2=2
x=1
y=9*1+2=11
you find two points (0,2),(1,11)
put x=2,3,...... and find values of y

Answer 5

so there are infinite solutions

Answer 6

@chlobohoe can u please help me

Answer 7

yeah babe i can! Well first for part A, you'll probably want to graph the equation, and then any point that falls on the line of that equation is a solution!

Answer 8

i don't understand the last part

Answer 9

like this.. you need to graph the equation.

Answer 10

Now to explain Part A: tell how you will show all of the solutions that satisfy this equation. The way to find the solutions after you've graphed the equation is that EVERY POINT ON THE LINE OF THE EQUATION, satisfies it.

Answer 11

ohhhh ok

Answer 12

yepppp and then for part B, you basically just look for three different points on the line that are solutions for the equation.! (0,2) is on the line.. so therefore a solution

Answer 13

@chlobohoe can you give examples of other solutions

Answer 14

@chlobohoe

Answer 15

you can do this! just go to desmos.com/calculator and enter the problem! then find points that are on the line!

Answer 16

ok thx

Answer 17

and also what @surjithayer was doing is really helpful!

let x=0
y=9*0+2=2
so this means when x is 0, y is 2

x=1
y=9*1+2=11
this means when x is 1, y is 11

HE FOUND YOU TWO POINTS ALREADY (0,2),(1,11)

you just keep putting in different x amounts,...... and you will find values of y!

Answer 18

Can u help me with part C

Answer 19

yes i can :) hold on lemme figure it out

Answer 20

ok thx

Answer 21

@chlobohoe

Answer 22

hold on a sec.. im still here

Answer 23

okay so a system of equations is "inconsistent" if no solutions exist. Graphically, this means that two lines are not intersecting... so one equation would be y=9x

Answer 24

ok thx

Answer 25

uh huh! I hope i helped babe

Answer 26

@chlobohoe can u help me with another problem?

Answer 27

yeah sure just close this question and start another one! tag me when you're ready