<p>Find the equation of a prabola that passes through points: (-1,-6), (3, -12), and (2, -4.5)</p>
<p>I know the vertex method of finding it - using the equation a(x-h)+k but i cant figure out how to do it without a given vertex. </p>
<p>HELP please! </p>
<p>Merci beaucoup!</p>
<p>answer choices?</p>
<p>(-2x^2)+2.5x-1.5?</p>
<p>Yep, that’s right.
Checked it on my 89</p>
<p>the calculator method would be to put them in a list and perform quadratic regression…</p>
<p>that’s probably easier than hand methods</p>
<p>I just learned about regressions on the calc. I swear - if someone was fast enough to use the calc often, and knew all of its ins-n-outs which apply to the SAT, they probably could raise their score 60 points.</p>