Question 2.2. Which ordered pairs make the inequality true?

2x + y > –4

Choose all answers that are correct.
(Points : 1)
(–3, 1)
(–1, 2)
(1, –5)
(2, –9)

Question 3.3. What is the slope of the line represented by the equation ?
(Points : 1)
–5

6

Question 4.4. What is the slope of the line represented by the equation 6x –3y = 4?
(Points : 1)
2

–2

Question 5.5. What is the simplified form of the expression?

15y – 3(4y + 10)

(Points : 1)
3y – 30
3y + 10
27y – 30
27y + 10

Question

18-03-2015
Mathematics

Answered

Question 2.2. Which ordered pairs make the inequality true?

2x + y > –4

Choose all answers that are correct.
(Points : 1)
(–3, 1)
(–1, 2)
(1, –5)
(2, –9)

Question 3.3. What is the slope of the line represented by the equation ?
(Points : 1)
–5

6

Question 4.4. What is the slope of the line represented by the equation 6x –3y = 4?
(Points : 1)
2

–2

Question 5.5. What is the simplified form of the expression?

15y – 3(4y + 10)

(Points : 1)
3y – 30
3y + 10
27y – 30
27y + 10

Answer :

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iGreen iGreen · Answer 1 · 2015-03-18T11:28:50-04:00

Question 2.2. Which ordered pairs make the inequality true?2x + y > –4The solutions are (-1, 2) and (1, -5), look at the graph in the attachment.

Question 3.3. What is the slope of the line represented by the equation?

There is no equation

Question 4.4. What is the slope of the line represented by the equation 6x - 3y = 4?

Convert to slope-intercept form:

6x - 3y = 4

Subtract 6x to both sides:

-3y = -6x + 4

Divide -3 to both sides:

y = -6/-3x + 4/-3

Simplify:

y = 2x - 4/3

Now it's in slope intercept form, y = mx + b, where 'm' is the slope. So the slope here is 2.

Question 5.5. What is the simplified form of the expression?

15y - 3(4y + 10)

Distribute -3 into the parenthesis:

15y - 12y - 30

Combine like terms:

3y - 30