Question

Solve the following system of inequalities by graphing.
5x - 4y ≥ -20
3x - 2y ≤ -8
y ≥ -3

Answer 1

you hve graphs?
y <5/4x +5
y> 3/2x +4
with the equl underneath
1. graph the y-interceept
2. from y- intercept use rise over run or slope.
3.connect since you have equal to sign solid line
4. shade above or below the line easy way to know your right p[lug in origin.

Answer 2

I do

Answer 3

Solve the following system of inequalities by graphing.
5x - 4y ≥ -20
3x - 2y ≤ -8
y ≥ -3


11. Solve the following system of inequalities by graphing.
-9x + 6y ≥ 18
-x + 3y ≥ -12
y ≤ 4



12. Solve the following system of inequalities by graphing.
3x + 12y ≥ -108
-7x + 6y ≤ 48
y ≤ -4


13. Solve the following system of inequalities by graphing.
6x + 10y ≤ -40
x + y ≤ -8
y ≥ -1


14. Solve the following system of inequalities by graphing.
-4x + 16y ≥ 128
-3x + 8y ≤ 80
y ≤ 12


15. Solve the following system of inequalities by graphing.
3x + 9y < -18
-x + 3y ≤ 12
y < 0


16. Solve the following system of inequalities by graphing.
5x + 2y ≥ -6
-5x + 2y < 14
y < 6


17. Solve the following system of inequalities by graphing.
-6x - 2y < -16
2x - y > 2
y ≥ -4


Part 3
Select the best answer from the choices provided. (Each question is worth one point)
18. Lee and Pat have $40. Lee has three times the money that Pat has. Which of the following is a system of equations that describes this situation? 4L + P = 40
3L = P L + 4P = 40
L = 3P
L + P = 40
L = 3P L + P = 40
L = -3P

19. A small toy company makes two types of toys: dolls and toy cars. The expense to make a toy car is $5. The expense to make a doll is $7. The company spends $780 a day making toys. They also make 20 toy cars fewer than twice the number of dolls they make. Construct a system of equations that describes this situation. 7c + 5d = 780
c + 20 = -2d 7c + 5d = 780
c - 20 = -2d
5c + 7d = 780
c + 20 = 2d 5c - 7d = 780
c – 20 = 2d

20. Susan and Joyce have $45. Susan has ten dollars more than four times the money that Joyce has. Construct a system of equations that describes this situation. S + J = 45
S + 10 = -4J S + J = 45
S - 10 = 4J
S + J = 45
S + 10 = 4J S + J = 10
S + 45 = 4J

21. Tim has $200 more than Ron. Tim has 50 dollars more than twice the money that Ron has. Construct a system of equations that describes this situation. T + R = 200
T + 2R = 50 T - R = 200
T + 2R = 50
T - R = 200
T – 2R = 50 R - T = 200
R – 2T = 50

Part 4
Type the answer to the question in the textbox below each item. (Each question is worth two points)
22. Solve the following systems of equations for both x and y.
-5x + 3y = -40
9x - 4y = 72

23. Solve the following systems of equations for both x and y.
-10x + 9y = 73
-5x - 2y = 56

24. Solve the following systems of equations for both x and y.
-x - 2y = -17
2x + y = 16



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Answer 4

@poetrylover

Answer 5

okay give me some time okay?

Answer 6

follow these steps
1. isolate y to get it in y > or < mx +b form okay.
2. graph y-intercept and from there do slope rise over run
3. depending on the sign greater than or equal to as well as less than or equal to you will have a solid line. greater than or less than you have a dash line.
4. to shade plug in (0,0) for x and y until you make the equation true.

Answer 7

i'll show you an ex