Math 3C Winter 2009
Name:
Homework Supplement #2
Section _________________________________
DUE: Tuesday, January 20, 2009
Students: Please print this PDF, do your work on those pages, and turn them in to your TA on the due date.
1. through 8. Solve and graph the systems:
"2x + 5y = 16
1. #
$ 3x ! 7y = 24
" 7x ! 8y = 9
2. #
$ 4 x + 3y = !10
" x ! 3y = 4
3. #
$!2x + 6y = 2
"9x + 2y = 0
4. #
$ 3x ! 5y = 17
" 4 y + 3x = 3
5. #
$!2y + x = !4
! 3x = 12 + 6y
6. "
# 4 x = 16 + 8y
"8x ! 2y ! 5 = 0
7. #
$!12x + 3y ! 7 = 0
"!x + .5y = !5
8. #
$0.2x ! 0.1y = 1
Math 3C Winter 2009
Homework Supplement #2
DUE: Tuesday, January 20, 2009
Name:
Section _________________________________
9. through 14. Sketch the graph of the inequality:
9. 3x ! 2y < 6
10. 4 x + 3y < 12
11. 2x + 3y ! 2y + 1
12. x 2 + y 2 < 25
13. 4 ! x 2 + y 2
14. 4 ! x 2 + y 2 < 25
15. through 17. Sketch the graph of systems of inequalities:
"y ! x < 0
15. #
$2x + 5y < 10
#x2 + y2 ! 4
17. $
%x + y " 1
$ 3x + y ! 6
&
& y " 2x # 1
16. %
& x # "2
&' y ! 4