Question

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Answer 1

There's Algebra 9? :O lel

Answer 2

Hello and Welcome to OpenStudy! :)

we cannot help with tests or quizzes as it would be considered cheating, sorry

but
most prospective tutors and I would be more inclined to answer you quickly if you'd please post your actual question. then anyone willing to help you will help you. :)

Answer 3

Well I have no clue how to graph... And that's a major problem

Answer 4

alright, what are you having trouble with graphing? perhaps I can help :)

Answer 5

Stuff like y= -.5x^2

Answer 6

for graphs like that, you can plug in numbers for x, and get y values
to get coordinate points that way.
do you know what I mean?

like when you plug in 2 for x
y = (-0.5)(2)^2 = -0.5 * 4 = -2
so a point on the graph would be (2, -2)

Answer 7

But how do you know what to plug in?

Answer 8

you would/should just plug in numbers you feel comfortable with
(unless otherwise specified)
so -4, -2, -1, 0, 1, 2, 4 would all work :)

Answer 9

Okay, Now a different question, once it's graphed how could you find the domain and range?

Answer 10

domain is how far left or right it goes

range is how far up or down it goes

Answer 11

oooh....

Answer 12

Jigg jigg, you could have just said the domain is the x, and the range is the y >.>

Answer 13

how would I find a solution to something like Y= -4x^2+7x-8 what equation would I use?

Answer 14

tHe_FiZiCx99 you didn't even fan me >.>

learningrose: if by solution you mean zeros
then 0 = -4x^2 + 7x - 8 which you would factor