Posted by Carmen on Saturday, October 4, 2008 at 7:28pm.
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%

algebra  bobpursley, Saturday, October 4, 2008 at 8:49pm
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

algebra  Reiny, Saturday, October 4, 2008 at 8:52pm
Those are a lot of questions, try to break up your posts into smaller bits
Most of your answers are correct, I found a few that had errors.
(wish you had "numbered" your questions)
<<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?
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