Mathematics 209 Some Review-Day 1 Name Simplify each expression 1 4-(1-3)-S 2. 2
ID: 2913300 • Letter: M
Question
Mathematics 209 Some Review-Day 1 Name Simplify each expression 1 4-(1-3)-S 2. 2. Solve each equation or inequality 6. 5 8. Determine the equation of the line described 11. vertical line that passes through the point (4,-3) 12. has a y-intercept at 0 5) and a slope of -2 13. has an x-intercept of (1, 0) and a slope of 3 14. passes through the point (4,-1) with a slope of 2 15. passes through the points (5, 3) and (7,-9) 16. passes through (3,-1) and is parallel to y 4x-5 17 passes through (1,5) and is perpendicular to 2x-y = 3 ,Explanation / Answer
1) -5^2
= 5^2 = 25
-5^2 = - 25
2) ( 4 - ( 7 - 3) - 5 + 1 ) / 2
= ( 4 - (4) - 5 + 1 ) / 2
= ( -4 ) / 2
= - 2
3) 3x + 7 + ( 2x -1 ) - ( x- 5)
= 3x + 7 + 2x - 1 - x + 5
= 4x - 11
4) 5x - 4( 3x - 1 ) - 5 - x
5x - 12x + 4 - 5 - x
- 8x - 1