Question

Table of values help pleasee!!!!!
I'm plugging in " -2 " for each x in this equation

" y = -2x^2 + 2x + 1 "

After plugging in " -2 " it turn into

" -2(-2)^2 + 2(-2) + 1 "

Solving that would give me

-8 + -4 + 1

My teacher mentioned something that when dealing with negative numbers, you have to subtract instead of add so then

-8 - 4 right?

Equals to -12 + 1 = -11

Is -11 the answer?

Answer 1

Yes, good job :)

Answer 2

@ahsome did I really get this right or are you just trying to close this thread?:(

Answer 3

You did dude, don't worry ;)

Answer 4

Do you want me to explain how?

Answer 5

Think of it this way, you have a number line.



and you need to add "-4" which just means you need to minus 4, so when you subtract a number you go to the left of the line right?