This can be solved by with Algebra using the distributive property.
-2 + 8x = 3x + 8
Or backsolving by substituting in each answer.
Or by using the TI-83/4 and putting each side of the equation into Y1 and Y2
For what value of x on the table are the y values equal?
This question can be done with or without the TI-84.
Notice in answer (1) that -8 x -8 will give +64 which does not match the trinomial
Notice in answer (2) that FOIL’s Outer and Inner +8m – 8m which will cancel out the middle term and does not match -12m
In (3) and (4), we are looking for the middle terms that add up to -12m we just have to watch our signs!
That’s it — that’s two points!
To check work with a TI-83/4, put m^2 – 12m -64 into Y1 and then try each of the others into Y2.
Check the graph and the tables…when you find the match, that is David’s correct factoring!
The January 2019 Regents is less than a month away! Try this one:
A linear model means that there is a constant rate of change so every time x (minutes) changes (in this case, by 1), Heart Rate changes by the same amount. Study all 4 choices and you will find the one that has the linear pattern!
Shout out to New York the Empire State aka the Regents State! The Regents is coming!
CC Algebra I is the most important Regents as s’s need at least 1 Math Regents to graduate and Alg I is so much more accessible than Geo or Alg II.
The best prep: Do Regents questions!!
There are certain questions that all and I mean ALL students should be able to answer correctly and get 2 points! Too often, students have not seen all the content and/or are not adept at the TI-83/4 calculator.
Make sure that you and your student(s), teacher(s) feel empowered to take the exam and learn Math in the process 🙂
Here is a link to the Bible of Algebra I (thanks to the jmap folks!)
If you prefer, you can call it an OED of Algebra I or the Primer of Algebra I.