SAT MATH EXAMS WITH CORRECT
ANSWERS/DEFINITIONS
1. quadratic formula - ANSWER-[-b ± √(b² - 4ac)] / (2a)
2. slope formula - ANSWER-(y₂- y₁) / (x₂- x₁)
3. integers - ANSWER-..., -3, -2, -1, 0, 1, 2, 3, ...
4. rationals - ANSWER-fractions (anything expessable as a ratio of
integers)
5. reals - ANSWER-integers, rationals, plus special #s (like √2 or pi)
6. order of opperations - ANSWER-PEMDAS (Parentheses / Exponents /
Multiply / Divide / Add / Subtract)
7. Arithmetic Sequences - ANSWER-t₁, t₁+ d, t₁+2d, ...
8. Geometric Sequences - ANSWER-t₁, t₁· r, t₁· r², ...
9. Factors - ANSWER-ex. factors of 52 are 2, 4, 13, and 26
10. Multiples - ANSWER-ex. multiples of 20 are 40, 60, 80, 100, ...
11. percentages - ANSWER-part = (percent / 100) x whole
, 12. average - ANSWER-average = sum of terms / number of terms
13. average speed - ANSWER-average speed = total distance / total
time
14. sum - ANSWER-sum = average x (number of terms)
15. mode - ANSWER-mode = value in the list that appears most
often
16. median - ANSWER-median = middle value in the list
17. fundamental counting principle - ANSWER-if an event can
happen in N ways, and another, independent event can happen in M
ways, then both events together can happen in N x M ways.
18. probability - ANSWER-probability = number of desired outcomes
/ number of total outcomes
19. adding exponents - ANSWER-x^a · x^b = x^(a+b)
20. subtracting exponents - ANSWER-x^a / x^b = x^(a-b)
21. negative exponents - ANSWER-1 / x^b = x^(-b)
22. multiplying exponents - ANSWER-(x^a)^b = x^(a·b)
23. x^0 - ANSWER-1
ANSWERS/DEFINITIONS
1. quadratic formula - ANSWER-[-b ± √(b² - 4ac)] / (2a)
2. slope formula - ANSWER-(y₂- y₁) / (x₂- x₁)
3. integers - ANSWER-..., -3, -2, -1, 0, 1, 2, 3, ...
4. rationals - ANSWER-fractions (anything expessable as a ratio of
integers)
5. reals - ANSWER-integers, rationals, plus special #s (like √2 or pi)
6. order of opperations - ANSWER-PEMDAS (Parentheses / Exponents /
Multiply / Divide / Add / Subtract)
7. Arithmetic Sequences - ANSWER-t₁, t₁+ d, t₁+2d, ...
8. Geometric Sequences - ANSWER-t₁, t₁· r, t₁· r², ...
9. Factors - ANSWER-ex. factors of 52 are 2, 4, 13, and 26
10. Multiples - ANSWER-ex. multiples of 20 are 40, 60, 80, 100, ...
11. percentages - ANSWER-part = (percent / 100) x whole
, 12. average - ANSWER-average = sum of terms / number of terms
13. average speed - ANSWER-average speed = total distance / total
time
14. sum - ANSWER-sum = average x (number of terms)
15. mode - ANSWER-mode = value in the list that appears most
often
16. median - ANSWER-median = middle value in the list
17. fundamental counting principle - ANSWER-if an event can
happen in N ways, and another, independent event can happen in M
ways, then both events together can happen in N x M ways.
18. probability - ANSWER-probability = number of desired outcomes
/ number of total outcomes
19. adding exponents - ANSWER-x^a · x^b = x^(a+b)
20. subtracting exponents - ANSWER-x^a / x^b = x^(a-b)
21. negative exponents - ANSWER-1 / x^b = x^(-b)
22. multiplying exponents - ANSWER-(x^a)^b = x^(a·b)
23. x^0 - ANSWER-1
