Keystone Exam Review #1

1. Keystone Exam Review #1 VIEW THIS AS A SLIDE SHOW

2. Directions • Work each problem thru on scratch paper. • When finished w/ answer, click to view solution. Not all problems are sequential (1,2,3,4…) but there are Approximately 30 total questions

3. {-36} Click for solution {12} Click for solution {3} Click for solution {17/12} Click for solution {6} Click for solution

4. Click for solution X=3 so sides are 9 W = -L + 6 Click for solution A-C = H B Click for solution

5. Click for solution X<4 Click for solution X<-1 Click for solution X>-11 Click for solution

6. Click for solution -4 4 {x:-4<x<4, xeR} Click for solution -11 5 {x:--11<x<5, xeR} Click for solution {x: x<-4 or x>5, xeR} Click for solution

7. Click for solution 14 Click for solution

8. 3/4 Click for solution 1 2 3 4 Click for solution

9. Click for solution

10. Click for solution

11. y-y1 = m(x – x1) Click for solution Y = 3x+6 Y = ½ x+4 Click for solution Y = -2x+4 Click for solution Click for solution C = 1.5n + 10 C = $14.50 -- 1.5(3) + 10 14 nights [ 31 = 1.5n + 10 ] solve for n

12. Click for solution { -4/3 , 3 } { 5, -3 } Click for solution Click for solution No, because 7 is not < 4.5 using substitution Click for solution