# algebra

Q: when graphing the equation y = 4/3x + 2, the y intercept is?
A: (0,2)

Q: Determine whether - 3.5 is a solution of the inequality.
x greater than or equal to 6
A: No

Q:identify the y intercept of y = x + 8

A: (0,8)

Q:solve using multiplication principle then graph
- 15x > - 75

A: {x | x > 5}
when graphing the circle is open on the 5 and goes to the right

Q: solve using the addition and multiplication principles
2 + 8x < 10
{x | x ? ?}

A: {x | x < 1}

Q: find the slope, if it exists, of
(- 2,3) and (4, - 4)

m = ?

A: m = - 7/6

Q: solve using the addition principle

2x + 6 > x + 16
the solution set is {x | x > ?}

A: {x | x > 10}

Q: find the slope
y= - 3x + 7

M = ?

A: m = - 3

Q: find the slope

x + 9y = 18

m = ?

A: m = - 1/9

Q: find the slope

(- 3,4), (2,1)
m = ?

A: m = - 3/5

Q: solve using the multiplication principle
- 6x < - 18
the solution set is {x | x ? ?}

A: {x | x < 3}

Q: solve
y - 3 > - 13
the solution is {x | x > ?}

A: {x | x > - 10}

Q: identify the y intercept

y = 1/3x

A: the y intercept is (0,0)

Q: you are taking a science course in which there will be four tests, each worth 100 points. you have scores of 89, 97, and 95 on the first 3 teests. you must make a total of 360 in order to make an A. what scores on the last test will give you an A?

A: solution is {s | s > or = to 79}

Q: solve using addition and multiplication principles.

8 - 6x > 4 - 5x

the solution set is {x | x ? ?}

A: {x | x < 4}

Q: from a base elevation of 7900 ft, a mountain peak in colorado rises to a summit elevation of 14827 ft over a horizontal distance of 15838 ft. find the grade of the peak.

A: 44%

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2. 👎
3. 👁
1. Q:solve using multiplication principle then graph
- 15x > - 75

A: {x | x > 5}
when graphing the circle is open on the 5 and goes to the right
Q: solve using the multiplication principle
- 6x < - 18
the solution set is {x | x ? ?}

A: {x | x < 3}

recheck those

1. 👍
2. 👎
👤
bobpursley
2. Those are a lot of questions, try to break up your posts into smaller bits

<<Q:solve using multiplication principle then graph
- 15x > - 75

A: {x | x > 5}
when graphing the circle is open on the 5 and goes to the right >>

When you multiply or divide an inequation by a negative, you have to reverse the inequality sign, so ...
- 15x > - 75
x < 5 would be your inequation, the graph would go to the left.

You made the same error in

<<Q: solve using the multiplication principle
- 6x < - 18
the solution set is {x | x ? ?}

A: {x | x < 3} >>

should be x > 3

in
<<Q: solve
y - 3 > - 13
the solution is {x | x > ?}

A: {x | x > - 10} >>

you switched from y's to x's, why?

1. 👍
2. 👎
3. <<Q: solve
y - 3 > - 13
the solution is {x | x > ?}

A: {x | x > - 10} >>

you switched from y's to x's, why?

I meant: {y | y > - 10}

1. 👍
2. 👎

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