Question

y=-.029x^2+.286x+1.093. find the x-intercepts

Answer 1

@miss2ne2 do you know what is x-intercept?

Answer 2

yes but i just cant remember how to get the answers. they are suppose to be 1987 and 2003 but i just cant seem to get those answers

Answer 3

X-intercept is/ are the points where the curve crosses x-axis or y=0

Answer 4

yes i know

Answer 5

so put y=0 and then solve for x!!

Answer 6

so how would i do that?

Answer 7

Do you know the quadratic formula?

Answer 8

yes
thats how i set it up but yet i know i did something wrong.

Answer 9

Show your approach here, I'll guide you if I find any mistake:)

Answer 10

\[-.286\pm \sqrt{?}.286^2-4(-.029)(1.093)\div2(-.029)\]

Answer 11

never mind i just figured it out. i saw that i was adding somethings wrong. thanks for your help.

Answer 12

Are you sure? let me know if you need help

Answer 13

yes i am sure. and thanks again..