1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nadya [2.5K]
3 years ago
5

Which ordered pairs make both inequalities true? Check all that apply.

Mathematics
2 answers:
Thepotemich [5.8K]3 years ago
7 0
All others did not satisfy the inequality simultaneously except #4 and #6
For #4:
2 < 5(1) + 2 i.e. 2 < 7 (true)
2 >= 1/2(1) + 1 i.e. 2 >= 3/2  (true)
For #6
2 < 5(2) + 2 i.e. 2 < 12 (true)
2 >= 1/2(2) + 1 i.e. 2 >= 2

Ganezh [65]3 years ago
6 0

we have

y < 5x + 2 -------> inequality 1y \geq \frac{1}{2}x + 1 -------> inequality 2

using a graph tool

see the the attached figure N 1

the solution of the system is the shaded area

case 1) (-3, 2)

This point satisfies the inequality 2 but does not satisfy the inequality 1.

therefore

it is not a solution of the system

see the attached figure N 2


inequality 1

(-3,2)\\ x=-3\\ y=2

2 < 5*(-3) + 2

2 < -13 -----> is not true

inequality 2

(-3,2)\\ x=-3\\ y=2

2 \geq \frac{1}{2}*(-3) + 1

2 \geq -\frac{1}{2} -----> is true

case 2) (-1, 3)

This point satisfies the inequality 2 but does not satisfy the inequality 1.

therefore

it is not a solution of the system

see the attached figure N 2


inequality 1

(-1, 3)\\ x=-1\\ y=3

3 < 5*(-1) + 2

3 < -3 -----> is not true

inequality 2

(-1, 3)\\ x=-1\\ y=3

3 \geq \frac{1}{2}*(-1) + 1

3 \geq \frac{1}{2} -----> is true

case 3) (0, 2)

This point satisfies the inequality 2 but does not satisfy the inequality 1.

therefore

it is not a solution of the system

see the attached figure N 2


inequality 1

(0, 2)\\ x=0\\ y=2

2 < 5*(0) + 2

2 < 2 -----> is not true

inequality 2

(0, 2)\\ x=0\\ y=2

2 \geq \frac{1}{2}*(0) + 1

2 \geq 1 -----> is true

case 4) (1, 2)

This point satisfies the inequality 2 and satisfies the inequality 1.

therefore

it is a solution of the system

see the attached figure N 2


inequality 1

(1, 2)\\ x=1\\ y=2

2 < 5*(1) + 2

2 < 7 -----> is true

inequality 2

(1, 2)\\ x=1\\ y=2

2 \geq \frac{1}{2}*(1) + 1

2 \geq \frac{3}{2} -----> is true

case 5) (2,-1)

This point satisfies the inequality 1 but does not satisfy the inequality 2.

therefore

it not a solution of the system

see the attached figure N 2


inequality 1

(2, -1)\\ x=2\\ y=-1

-1 < 5*(2) + 2

-1 < 12 -----> is true

inequality 2

(2, -1)\\ x=2\\ y=-1

-1 \geq \frac{1}{2}*(2) + 1

-1 \geq 2 -----> is not true

case 6) (2, 2)

This point satisfies the inequality 1 and satisfies the inequality 2.

therefore

it is a solution of the system

see the attached figure N 2


inequality 1

(2, 2)\\ x=2\\ y=2

2 < 5*(2) + 2

2 < 12 -----> is true

inequality 2

(2, 2)\\ x=2\\ y=2

2 \geq \frac{1}{2}*(2) + 1

2 \geq 2 -----> is true

therefore

the answer is

case 4) (1, 2)\\ case 6) (2, 2)

You might be interested in
Item 16<br> Solve the equation.<br><br> −49f=−3
weqwewe [10]
I think the answer is either 3/49 or about 0.061
  hope this helps.
4 0
3 years ago
Let f(x) = -12-31 +3 and g(x) = 3x - 3. Graph the functions in the same coordinate plane.
castortr0y [4]

Answer:

Zeros of Functions. A zero of a function f is a number a such that f(a) = 0. In other words, a zero of f is a solution for the equation f(x) = 0.

Step-by-step explanation:

5 0
2 years ago
Find the measure of angle b
galina1969 [7]

Answer:

48. ..........hhshhxhxx

Step-by-step explanation:

180-42-90=48

3 0
3 years ago
Read 2 more answers
What is 0.178 as a fraction
olga55 [171]
0.178 as a fraction is <span>89/<span>500 !</span></span>
4 0
3 years ago
Read 2 more answers
Jamal put 600 pennies into 6 equal rolls.how many pennies were in each roll?
nordsb [41]

Answer:

100

Step-by-step explanation:

600 divided by 6 = 100


Hope this helps Buddy!


- Courtney

7 0
3 years ago
Read 2 more answers
Other questions:
  • Subtraction is a commutative operation. When writing an expression for the difference of two numbers, it does not matter what or
    9·2 answers
  • Write five numbers that round up to 600<br> write five numbers that round down to 600
    7·1 answer
  • H(x)=5x-10 find the inverse
    8·1 answer
  • The teacher said estimate this with out counting 1 by 1 then divide it by 20 HELP PLEASSEE
    14·1 answer
  • the lengths of the sides of a rectangle window have the ratio 1.6 to 1. the area of the window 2560 square inches. what are the
    9·2 answers
  • How many groups of ten are there in 230?
    5·1 answer
  • Anyone know the answer?
    5·2 answers
  • I really need help!! Which box doesn't belong??
    5·1 answer
  • The measure of angle 1 is 27 degrees.<br> Complement:<br> Supplement:
    15·1 answer
  • The area of the triangle shown is 40.0 centimeters squared What is the height of the triangle?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!