Question

An equation is shown below:

9x - y = -2

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

hmmm when is a system of equations "inconsistent"?

Answer 2

When it's not linear?

Answer 3

9x-y=-2
-9x -9x
y=-9x-2
this is what i got so far

Answer 4

well... both are likley linear equations

is inconsistent if it has no solutions

not solutions for a system of equations with linear equations means
the lines never touch each other

and that only happens when both lines are parallel

Answer 5

So how do I make an equation right there that is inconsistent? Make it quick please I'm going to my dad's birthday dinner soon.

Answer 6

do you know how to find slopes in a line?

Answer 7

Rise/Over run... Count up x and count right y.,

Answer 8

well.. yes... if you just solve the one you have there, for say "y" what would you end up?

Answer 9

hmm anyhow.. if both lines have the same "slope" that means they're both parallel

so if you solve that one for "y" and put it in mx+b slope-intercept form.... keep the slope, change the y-intercept and you'd end up with a parallel line to it

Answer 10

So what would the equation be that would make it inconsistent?

Answer 11

well.. what did you get when solving for "y" at 9x - y = -2 ?

Answer 12

Well, 9(2) - y = -2 would just be 20.

Answer 13

y=20.

Answer 14

hmmm? well.. 20? what happened to the "x" though?