Solving Quadratic Equations Assessment

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Name:
I can solve quadratics.
Date:
Period:
Level 2
1. Solve this equation by graphing on your calculator.Ifyouneedhelp,please
callmeover.Yoursolutionwill notbeintegers.Estimatetothenearesttenth’splace.
y = 15x2 + 14x − 16 Solution:___________________________________
Level 3
2. Solve the equation in #1 by
factoring.
3. Solve the equation in #1 by
completing the square.
Solution:___________________________________ Solution:___________________________________
4. Solve the equation in #1 using the quadratic formula.
Solution:___________________________________
Level 4
5.AcompanycalledHeGotGamemakesagamecalledPintheBeardonMr.Morris.
Becauseoftheoverheadofrunningthecompanyandthecosttomakethegame,the
companywon’tmakeapro itunlessthegameispricedatacertainamount.The
pro itcanbemodeledusingthefollowingequation:
y= 5x2 + 45x − 40 Where y isthecompany’spro itand x isthepricepergame.
Whatistheminimumpricethatthegamemustsellforinorderforthecompanyto
bepro itable?
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