Question

Graph. y= -x^2 + 3x - 4

Answer 1

http://www.wolframalpha.com/input/?i=+y%3D+-x%5E2+%2B+3x+-+4


use that as a guide

Answer 2

dam that does not help at all

Answer 3

why not? You know how it will would like . now just plug some x's around the curve and graph it

Answer 4

there has to be an easier and shorter way to do it then just plot points

Answer 5

No.

Ive never seen people try to graph this by hand that's why I used a graphing program.


If you really want to do it by hand it's harder.
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Find the vertex by finding the derivative and setting it to zero then solve for x. Plug that to the original equation and solve for y then

You have the point of the top of the curve. Plug in values to the right and left and graph. That's even harder.

Answer 6

all i did was make a table like that then found y then graphed by hand is there an easier way to do it ?