Axis of Symmetry
What is the axis of symmetry
2x2+3x-5
(doesn't need to be rounded)
-0.75
What is the vertex form?
(-3,5)
y=(x+3)2+5
What is the common difference?
1, 13, 25, 37, 49...
12
A sample of a radioactive substance has a half‑life of 10 years. If you start with 80 grams, how much will remain after 20 years?
20 grams
Is this Rational or Irrational?3.14159...
IRRATIONAL
2x2−11x+15
2.75
(2,-4)
y=(x−2)2−4
If the first term of this sequence is 15, and the common difference is 7, what would the 20th term be?
148
A substance has a half‑life of 5 hours. You start with 64 grams, and after some time only 8 grams remain. How many half-life's are left?
3
Rational or Irrational
3.45
RATIONAL
5x2+20x+7
-2
(6,-9)
y=(x-6)2-9
What is the common ratio?
1,3,9,27,81...
3
Substance A has a half‑life of 6 minutes. Substance B has a half‑life of 12 minutes. If both start at 40 grams, which one will reach 5 grams first?
Substance A reaches 5g first
Rational or Irrational
22
RATIONAL
10x2-18x-5
0.9
(8,1)
y=(x-8)2+1