1. Review the old quizzes, practice quizzes, and practice problems along with the posted answers. Some of these may appear again. Make sure you can do them.
2. Some different but similar problems to try reviewing old material
-Given the equations y = -1/3x + 2, give 2 points on this line.
-Given that the following is NOT a function, what must the blank value be? (3,5), (4,6) ( __, 6)
– If the slope is 2 and the graph goes through (0,3), what is the equation of the line?
-If you know the average rate of change between point A and point B is decreasing, and point B is to the right of point A on the graph, what can you say about the y values for points A and B?
-Simplify, and check using mathway.com: -2(-6)/(-3) +(-6) – 8/(-4) + (-3)
-You want to make IDs for your employees in your business. you have 10 stores. Each store has 5 departments. Each department has 8 employees. How many IDs do you need to make?
-You have 4 stores in Oregon. Half of all your employees are women at every store department. How many IDs will you need for the Oregon Finance department, assuming Finance is one of the 5 departments in the problem above?
-Solve |x-3| = 6
-Solve for y: 3x – 2y/3 + 1 = y + 5x – 7 + 2x
-Write using piecewise function notation: y = 5 if x is less than 2 and y=3x if x is greater than or equal to 2
-Solve for x: 3 < 3x-6 < 12
– Sketch a quick graph of y = |x+1|
-Solve for y: 3-2y<11
New problems, Chapter 2, 2.1, 2.3, 2.4
1. f(x) = -4x^2 + 6x – 1 g(x) = -3x^2 – 2x + 3 find (f+g)x
2. find (f-g)x
3. find (2f-3g)x
4. find (f)(g)x or f times g of x
5. find (2f)(3g)x
6. find (f - g + 2f) x Challenge
7. #2 a and b on section 2.3, Exercises
8. find (3x -2)^2
9. find (3x-2)^3 Hint.. take the answer from #8 times (3x-2)
10 find 423x^0
11. find 4x^7/2x^5
12. find 2x^(-3)
13. find 6x^3(y^(-2))(z^4) / (2x(y^(-3))(z^2))
14. be able to change back and forth from scientific notation to regular notation. Use negative exponents.