Math 2 Formulas Exam Questions and Answers

Math 2 Formulas Exam Questions
and Answers
1. Quadratic Formula Correct Answer: x = -b ± (b² - 4ac)/2a
2. Discriminant Correct Answer: b²-4ac
3. Standard Form of Quadratic Equation Correct Answer: f(x)=ax² +
bx + c
4. Vertex Form of Quadratic Equation Correct Answer: y = a(x-h)^2
+k
5. Axis of Symmetry Correct Answer: -b/2a
6. vertex from vertex form Correct Answer: (h,k)
7. Pythagorean Theorem Correct Answer: a²+b²=c²
8. exponential function Correct Answer: y=ab^x
9. Compound Probability Correct Answer: P(a and b)=P(a) x P(b)
10. Conditional Probability Correct Answer: P(B/A)= P(a) x P(b)/P(a)
11. Counting Principle Correct Answer: multiple # of possibilities for each
choice
12. Direct Variation Correct Answer: y=kx k=y/x
13. Inverse Variation Correct Answer: y=k/x k=xy
14. Standard form of Radical Function Correct Answer: Correct
Answer: y=a x rad(x-h) + K
15. Rotation 90 Clockwise Correct Answer: (x,y) --> (y,-x)
16. Rotation 270 Clockwise Correct Answer: (x,y) --> (-y,x)
17. Dilation Correct Answer: (kx,ky)
18. Translation Correct Answer: (x,y) -> (x+h, y+k)
19. Partition a line Correct Answer: x-> x starting + ratio(run) y-> y
starting + ratio(rise)
20. SOHCAHTOA Correct Answer: sin=opp/hyp
cos=adj/
hyp
1/
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