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# graph question watch

1. Sketch the following graph:

y = - (x^2 - 4x - 5)

so i've got..

-((x-1)(x-5)), therefore the line intercepts the x axis at:

x = -1
x = -5

& y intercept = +5

however the graph is a -x^2 graph so i dont see how this is possible? could get away with it if it was an x^2 graph

any help is appreciated thx
2. You've factorised incorrectly.
3. its like x^2 but an n instead of a u

And x=5 x=-1 (u factorised incorrectly)
4. (Original post by Daniel Freedman)
You've factorised incorrectly.
how would you suggest i do it?
5. (Original post by Daniel Freedman)
You've factorised incorrectly.
DUHHHH

x = 1
x = -5

y intercept = 5

that works

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