# What is the y- intercept of –3x – 9y = 18? a. 2 b. -2 c. 6 d. -6

QUESTION POSTED AT 19/08/2019 - 05:51 PM

### Answered by answersmine AT 19/08/2019 - 05:51 PM

Rearrange the equation to the form:
y = mx + b
where b is the y-intercept.
-3x - 9y = 18
-9y = 3x + 18
y = -(x/3) - 2.
The answer is b. -2.

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Step-by-step explanation:

Given  : quotient of y and 3 is 25.

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Answer:

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Step-by-step explanation:

Bob has some 10 lb weights and some 3 lb weights. Together, all his weights add up to 50 lbs.

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ANSWERED AT 23/09/2019 - 04:04 AM

QUESTION POSTED AT 23/09/2019 - 04:04 AM

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Step-by-step explanation:

ANSWERED AT 23/09/2019 - 04:03 AM

QUESTION POSTED AT 23/09/2019 - 04:03 AM

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QUESTION POSTED AT 23/09/2019 - 04:02 AM

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QUESTION POSTED AT 23/09/2019 - 04:02 AM

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QUESTION POSTED AT 23/09/2019 - 03:59 AM

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ANSWERED AT 23/09/2019 - 03:59 AM

QUESTION POSTED AT 23/09/2019 - 03:59 AM

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ANSWERED AT 23/09/2019 - 03:59 AM

QUESTION POSTED AT 23/09/2019 - 03:59 AM

### Please help me, I don't understand literally any of this. # 1-6

1. y = x
y = 2x - 4

Locate the point of intersection of the 2 graphs. This is the solution set of the graphs, that is: (x, y) = (4, 4).

Solution set: (x, y) = (4, 4)

2. y = -x + 5
y = 3x - 2

Locate the point of intersection of the 2 graphs. This is the solution set of the graphs, that is: (x, y) = (2, 4)

Solution set: (x, y) = (2, 4)

3. y - 2x = 4
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Locate the point of intersection of the 2 graphs. The 2 lines are parallel so they do not intersect and therefore no solution set exists for the given set of equations.

Solution set: Does not exist.

4. y - 4x = 8
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Locate the point of intersection of the 2 graphs. The 2 lines are completely overlapping each other so they intersect intersect at infinite points and therefore infinite solutions exist for the given set of equations.

Solution set: Infinite solutions

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Locate the point of intersection of the 2 graphs. This is the solution set of the graphs, that is: (x, y) = (0, 3)

Solution set: (x, y) = (0, 3)

6. -x + y = -2
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Locate the point of intersection of the 2 graphs. This is the solution set of the graphs, that is: (x, y) = (4, 2)

Solution set: (x, y) = (4, 2)

ANSWERED AT 23/09/2019 - 03:59 AM

QUESTION POSTED AT 23/09/2019 - 03:59 AM