Get the Math and Get Points!

When putting the answer choices into the TI-84 we can see that the only match is II.

Analyzing a graph can teach students about the zeros or solutions of a function.  This function passes through the x-axis 3 times: at x = -2, x = 1 and x =3.   We can also use this question to talk about factoring, y-intercepts, end behavior and other cool Math ideas.  The process of elimination is very rewarding as compare/contrast is a great way to learn content and  metacognition.

I am in favor of students knowing the Math part of this for sure but with the TI-84 , they can get the Math and get points.  The 2 points on this type of question may make the difference between Pass and Fail and perhaps even high school graduation.     The problem below comes from the June 2015 Algebra I Regents.CC Alg I 0615 12 Graohing cubic

 

Screen for 12 Alg I Regent12 I Algebra I CCOption I is a NO GO so answers (1) and (3) are OUT.

12 I Algebra I CC part 1112 I Algebra I CC part 11 Graph
Option II looking good — it’s a keeper!! 

12 I Algebra I CC part 11112 I Algebra I CC part 111 Graph
Option III is a NO GO 

 

 

 

 

 

 

 

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