# Get the Math and the Points! August 2019 CC Alg I Regents #3 For this question, we need to use the Distributive Property:
2(x^2 – 1) = 2x^2 – 2
while
3x(x – 4) = 3x^2 – 12x

Michael Paul Goldenberg’s excellent comment was that the constant term must be -2 and that leads us right to the answer!  Thanks

Combine like terms and only the x^2 are combinable.
A way to check your work is to put  2(x^2 – 1) +  3x(x – 4) into Y1 and to put each multiple choice answer into Y2 and then compare to see if the tables for Y1 and Y2 are equivalent.

# Get the Math and the Points CC Alg I Aug 2019 Regents #2 A function is defined as no repeating x values.  Please take a look above and see which table has unique x values.  That’s it — 2 points 🙂

# Get the Math and the Points! Aug ’19 Regents CC Alg I #1 This is actually a reading question!
If x = 0, it will still cost 250
If x = 1, the cost should be 273 (250 + 23)
If x = 2, the cost should be 296 (250 + 23 + 23)
Try these values for x and you will find the answer 🙂

# Jan 2019 Algebra I Regents #2 This question asks students to substitute or plug in -3 for x so
g(-3) = -2(3)^2 + 3(-3) being careful about order of operations 🙂

Students can check their work by using the TI-84  # Get the Math and the Points Aug 18 CC Algebra I Regents #30 The left hand side of the equation is almost a perfect square:
In order for it to be a perfect square:  x^2 + 4x + ____ = 2 + ____
To find the number that completes the square take 1/2 of 4 and square it
So 4 gets added to both sides
Then the right side becomes 6
Then we can write the left side like this: (x + 2) ^2
So (x + 2)^2 = 6
then take the sqrt of both sides but do not forget the +/- with the sqrt
Then subtract 2 from both sides:
You will have two answers a plus and a minus and you can check your work by using the quadratic formula 🙂