Question

how do you characterize a parabola without graphing it?

Answer 1

Equation: y = 2x2 + 5x – 3

Answer 2

i am trying to find how many x interepts it has and where does it lie

Answer 3

ok, that is the quadratic, right? so the quadratic has the roots, right? set the right hand side =0 to solve for the roots, those are the x-intercept points

Answer 4

yea it's the quadratic

Answer 5

they gave me 4 graphs

Answer 6

there is a trick: if it is hard to you, just draw it out on the scrap paper (don't let your prof know) and name everything out hahaha

Answer 7

graph 1 http://static.k12.com/calms_media/media/332000_332500/332445/1/3d2607a3baf8ab270cc7a4e93f1c205a8b5b0842/MS_ALG_S2_05_09_test_Q1c_question.gif

Answer 8

post the graph, I will show you how to figure out which one is the right one.

Answer 9

graph 2
http://static.k12.com/calms_media/media/332000_332500/332446/1/9ec2087d54044127dd2942d3dff6d503f40cf3f9/MS_ALG_S2_05_09_test_Q1d_question.gif

Answer 10

graph 3
http://static.k12.com/calms_media/media/332000_332500/332444/1/acc76a5db99693f72576741941dd431bad78ac28/MS_ALG_S2_05_09_test_Q1b_question.gif

Answer 11

reject graph1

Answer 12

graph 4
http://static.k12.com/calms_media/media/332000_332500/332443/1/aa3f5f2df961e2bf705ded9264499c90f8ee9642/MS_ALG_S2_05_09_test_Q1a_question.gif

Answer 13

reject graph3

Answer 14

you see, right after seeing it, I can get 50% correct, hehehe, quite easy

Answer 15

want to know how?

Answer 16

yea!

Answer 17

yea

Answer 18

yea ty