Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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Question 108103: Determine whether the lines are parallel, perpendicular or neither.
y = 1/6x - 20
y = 6x + 15
and y = 7x - 12
y = 7x + 15
and y = -1/9x + 14
y = 9x + 16 My answer is Perpendicular to the 1st and 3rd question and the 2nd question is parallel. I am sure how I know that - can you explain this - I don't know where to start.

Click here to see answer by checkley71(8405)

Question 108304This question is from textbook

: Could you please show me how to graph the linear equation y=2x?This question is from textbook

Click here to see answer by chitra(359)

Question 108405This question is from textbook McDougal Littell Algebra 1
: what is y when (2, y), (4, 5), m= 2
what is y when (-5, 3), (3,y), m= -1/2
what is y when (-1, 5), (3,y), m= 5
what is y when (5, 7), (8, y), m= 4/3
what is y when (2, -15), (5, y), m= 4/5This question is from textbook McDougal Littell Algebra 1

Click here to see answer by checkley71(8405)

Question 108429This question is from textbook McDougal Littell Algebra 1
: what is y when (2, -15), (5, y), m= 4/5This question is from textbook McDougal Littell Algebra 1

Click here to see answer by checkley71(8405)

Question 107848: complete the following table for the equation: y=6x-5
x -3 -1 __,__
y __,__,2, 4
Click here to see answer by HyperBrain(694)

Question 107847: find a graph for:
1/2 x-4
2x-4
1/2x+4
2x+4
Click here to see answer by HyperBrain(694)

Question 108597: Find the slope of the line that contains the point 8,-6 with a y-intercept of 4
The possible answers that where given are 4, 1/4, -5/4, -5/2 so it is one of these, I'm just not sure how to figure it.
My answer was 4, but I am not sure if it is correct.
Click here to see answer by checkley71(8405)

Question 108599: Find the y-intercept of a line with the equation y=4x+8
I did 1y=4x+8y
1y divided by 8y = 8
Answer 8
Am I correct?
Click here to see answer by checkley71(8405)

Question 108606: Find the y-intercept of the line with the equation 2x-6y=15
The answers for me to pick from are -5/2, 15/2, -15/2, 15
I came up with the answer -5/2, here is my work...
15=2x-6y
15 divided by -6 = -5/2
Answer -5/2
Am I correct?
Click here to see answer by stanbon(26273)

Question 108611: Find the slope of the line with the equation 4x+6y=11
Answers to pick from are 4, -2/3, 2/3, 11/6
My answer was 4, but I do not know if I am correct, my workbook does not explain how to do it very well!!

Click here to see answer by stanbon(26273)

Question 108710: Find the x-intercepts. I'm confused!!!
y=x^2+x-6
If someone could help with this one, I can figure out the other ones....I hope. Thank you!
Click here to see answer by edjones(3296)

Question 108861: I really need some help with these two problems. I don't know where to get started or how to get the answer. I thank you so much for all your help!
1.Graph the following quadratic equation: f(x)= x^2 + 4x -5 and
2.Graph the following quadratic equation: f(x)= -2x^2 -8x -6
Click here to see answer by checkley71(8405)

Question 108944: create a graph that shows x=3
thanks!!!
Click here to see answer by Fombitz(2113)

Question 109860: find 2 points for for the equation y=-5/6x +2
WE came up with 0,2 & -6,7 is this correct?

Click here to see answer by Fombitz(2113)

Question 110028: Find the x-intercepts.
y=x^2+5x+2
Please if you would take me through the steps? Thank you.
Click here to see answer by stanbon(26273)

Question 110028: Find the x-intercepts.
y=x^2+5x+2
Please if you would take me through the steps? Thank you.
Click here to see answer by edjones(3296)

Question 110042: I really don't understand...
Find the axis of symmetry.
y=x^2+5x-7
Thank you!
Click here to see answer by edjones(3296)

Question 110042: I really don't understand...
Find the axis of symmetry.
y=x^2+5x-7
Thank you!
Click here to see answer by josmiceli(3007)

Question 110039: Find the axis of symmetry.
y=x^2-10x+7
Please help!
Click here to see answer by bucky(1732)

Question 110109: find the slope of the line passing through the points (7,-1)and (10,-1)

m= -1(-1)/7-10 = -1+1/7-10= 1/3

Just double checking to see if I did this right.
Click here to see answer by jim_thompson5910(13794)

Question 110108: find the slope of the line passing through the points (7,-1)and (10,-1)

m= -1(-1)/7-10 = -1+1/7-10= 1/3

Just double checking to see if I did this right.
Click here to see answer by tutorcecilia(2042)

Question 110380: 19. Write the equation of the line that passes through point (–2, –18) with a slope of 8.
Click here to see answer by jim_thompson5910(13794)

Question 110382: Determine which two equations represent parallel lines.
Hint: Remember which part of the equation will be the same in equations representing parallel lines.
(a) y = 8x – 6 (b) y = –8x + 6 (c) y = 8x + 5 (d) y = x – 6

Click here to see answer by jim_thompson5910(13794)

Question 110381: Write the equation of the line with x-intercept (–5, 0) and undefined slope.
Click here to see answer by jim_thompson5910(13794)

Question 110377: 16. Determine which two equations represent perpendicular lines.
Hint: Remember what characteristic exist in equations representing lines that are perpendicular.
(a) y = 8x – 2
(b) y = x + 2
(c) y = – x + 2
(d) y = x – 2

Click here to see answer by jim_thompson5910(13794)

Question 110379: 18. Write the equation of the line that passes through point (0, –2) with a slope of .

Click here to see answer by jim_thompson5910(13794)

Question 110378: 17. A line passing through (13, 16) and (9, y) is parallel to a line with slope 2. What is the value of y?
Click here to see answer by jim_thompson5910(13794)

Question 110430: Graph using the intercept method: x + 3y = 6.
Requires a graph!

Click here to see answer by MathLover1(1183)

Question 110443: which of the ordered pairs (3,1)(0,-4)(-4,0)(-3,-7) are solutions for the equation x-y=4?
Click here to see answer by checkley71(8405)

Question 110453: Can you please help me solve the following?
Question: Write the slope intercept form for an equation of the line parallel to the graph of the givn equation and passing through the given point.
y=-2x+4 (6,-6)
Thank You,
Ashley
Click here to see answer by jim_thompson5910(13794)

Question 110429: Graph by first solving for y.
x – 3y = 9
Requires a graph!
Click here to see answer by jim_thompson5910(13794)

Question 110440: write the equation of the line which has y-intercept (0,5)and is perpendicular to the line with equation y= -3x+1.
I dont understand what they are asking. Please help.
Click here to see answer by jim_thompson5910(13794)

Question 110428: Find the slope of the line passing through the points (11, 20) and (9, 8).
Click here to see answer by jim_thompson5910(13794)

Question 110427: If y varies directly with x, and y = 72 when x = 6, find the constant of variation k.
Click here to see answer by jim_thompson5910(13794)

Question 110456: I thought I submitted this one...but no answer yet.
Find the distance between (-3,-2) and (1,4).
If someone could show me how to do this, I would appreciate it!
Thank you!
Click here to see answer by checkley71(8405)

Question 110455: I thought I submitted this one...but no answer yet.
Find the distance between (-3,-2) and (1,4).
If someone could show me how to do this, I would appreciate it!
Thank you!
Click here to see answer by checkley71(8405)

Question 110406: Find the distance between (-3,-2) and (1,4)
Can you show me how to do this problem?
Thank you!
Click here to see answer by josmiceli(3007)

Question 110659: Graph x = –3.
Requires a graph!

Click here to see answer by jim_thompson5910(13794)

Question 110657: Which of the ordered pairs
(7, 1), (9, 0), (5, –2), (–7, 8)
are solutions for the equation x + 2y = 9?
Hint: There can be more than 1.

Click here to see answer by jim_thompson5910(13794)

Question 110666: Graph y = 4.
Requires a graph!

Click here to see answer by jim_thompson5910(13794)

Question 110664: Identify the slope and the y-intercept.
y = 5x

Click here to see answer by jim_thompson5910(13794)

Question 110662: Write the equation of the line with slope 4 and y-intercept (0, –5). Then graph the line.
Requires a graph!

Click here to see answer by jim_thompson5910(13794)

Question 110658: Graph x + y = –2.
Requires a graph!

Click here to see answer by jim_thompson5910(13794)

Question 110424: Write the equation of the line with slope 4 and y-intercept (0, –5). Then graph the line.
Requires a graph!

Click here to see answer by ankor@dixie-net.com(6693)

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