Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 31300: solve by graphing indicate whether system is independent inconsistent or dependent
2x-3y=12
3y-2x=-12
Click here to see answer by josmiceli(19441)

Question 31301: solve by substitution indicate whether each systm is independent inconsistent or dependent
-3x+y=3
2x-3y=5

Click here to see answer by mukhopadhyay(490)

Question 31308: Hello I need some help with the problems below. I am not 100% sure how this site works but any help is appreciated.
1. what is the slope of the line y=5x+7
at what point does the line y=5x+7 cross the y axis
2. The y intercept of the line y=20x+500 is 500 how do you show the y intercept as an ordered pair
3. Find the slope between the two points (1, 5) and (0, 0)
Click here to see answer by brianunlv(12)

Question 31309: I would like to post the limit of 4 questions. I am struggling with the class and could use all the help I can get.
1. If you are in a rocket going perfectly vertical into the air what is the slope that you are encountering
2. The line parallel to the lin y=3x+5 has what slope
3. The line perpendivular to the line y=-x/3 + 5 has what slope
4. write the equation for the line y=-x/3+5 in standard form
Click here to see answer by mukhopadhyay(490)

Question 31314: I have no idea if I am posting this problem in the right area but here goes. Let f(x)=x+1/x, and g(x)=2/x. Find the composition f*g(x)=f(g(x)) and simplify. I put a star where the little circle was. I don't even know how to find that little cirle! Thank you for your help.
Click here to see answer by venugopalramana(3286)

Question 31298: please help me solve:
y<-2x+7
Thanks in advance
Click here to see answer by benni1013(206)

Question 31440: i need live help

Click here to see answer by ikdeep(226)

Question 31475: Put into standard form:
x-2y+7=0 (-4,0)< x,y
I've tried to get y by itself:

y= one-half x-3.5 > 0=one-half(-4)-3.5 > 0=-2-3.5 > 0=-5.5

I know that that isn't right but I can't figure out what I did wrong. Any help would be greatly appreciated.
Click here to see answer by longjonsilver(2297)

Question 31431: Solver and graph each inequality on a number line. 18-2n>26
Click here to see answer by mukhopadhyay(490)

Question 31051: determine if the following relations is also a function
[(-3,2),(-2,1),(0,0),(1,2)]
Click here to see answer by mukhopadhyay(490)

Question 31571: How do you graph the line y=6?[I think it is a vertical line]
Click here to see answer by elima(1433)

Question 31604: Can you please help me with this?
) Solve the inequality and state the solution set using interval notation.
y^2+y-6<0
Click here to see answer by mukhopadhyay(490)

Question 31588: My friend is driving 55mph West and he started from his home which is 75 miles West of mine. I leave at the same time, traveling West at the speed of 73 mph. Write 2 linear equations (one for me and one for my friend) that relate our distances away from my home versus time.
Click here to see answer by mbarugel(146)

Question 31302: solve compound inequality set solution using interval notation and graph it
-1/2 x <6 or 2/3 x < 4
Click here to see answer by mukhopadhyay(490)

Question 31712: For the function y= x^2-4x-5, how do you put this function into y=a(x-h)^2+k form???? I'm having a real hard time with this one!
Click here to see answer by mukhopadhyay(490)

Question 31779: Can you help me solve these two linear inequalities, and graph?
x+y<6
y>or=3x-4
Click here to see answer by elima(1433)

Question 31785: wtite the equation in slope intercept form
2x=3y=90
Click here to see answer by stanbon(75887)

Question 31797: Can you help me solve the system of linear inequalities by graphing?
x+y<6
y>or=3x-4
I need help finding the solution region.
Click here to see answer by benni1013(206)

Question 31737: y=5x
y=5x+4
Click here to see answer by elima(1433)

Question 31856: I have this question for homework " Draw a graph in which the variables x and y have a negative or inverse relationship. How would I go about doing this
Click here to see answer by stanbon(75887)

Question 31847: what is the slope of the line passing throught the given points?
(2,3),(5,9)
Click here to see answer by checkley71(8403)

Question 31873: A line contains (9,y) and (-6,3). It has slope 2/3. find y.
Click here to see answer by checkley71(8403)

Question 31875: I am trying to put together an example (word problem) where the solution of a system of inequalities must be in the first quadrant of a graph? Can anyone help me, please?
Click here to see answer by venugopalramana(3286)

Question 31880: I need to know what these equation graphs look like.
I'm a little confused. I know the line y=x+2
but the ones I'm not so clear on are as follows:
y= -1/2-1
y=x-1/2
could I please get some assistance on this.
Click here to see answer by mbarugel(146)

Question 31832: I have 2 questions.
1) are 3x+y=5 and -x+3y=6 perpendicular?
2) are 3x+y=5 and x+y=3 perpendicular?
Click here to see answer by mukhopadhyay(490)

Question 31926: find an equation of a line with slope 5 and y-intercept -4
Click here to see answer by Fermat(136)

Question 31923: find the slope of the line containing the points with coordinates (1,3)and(7,5)
Click here to see answer by benni1013(206)

Question 31965: How would you graph this equation
y=-sqrt(x+4)+3
Click here to see answer by stanbon(75887)

Question 31961: What is the solution to the problem:
|2x + 5| = 3x + 4
Click here to see answer by venugopalramana(3286)

Question 32068: Write the equation in slope intercept form.
3. (42) y + 2 = 6(x-1)
Click here to see answer by joey_quizan(15)

Question 32067: Determine the equation of each line. Write the answer in standard form using only intergers as the coefficients.
1. (38) The line through (0, 9) that is parallel to the line 3x + 5y = 15
I'm pulling out my hair! What's a co-efficient?
Click here to see answer by joey_quizan(15)

Question 32070: Determine the equation of each line. Write the answer in slope intercept form.
4. (52) The line through (4, 0) that is perpendicular to the line x + y = 3
I can't figure out where to start graphing? Why can't I understand this?
Click here to see answer by stanbon(75887)

Question 32099: My question is this: 2y-x<8
I have turned it around to be -x+2y=8 and found the first set of ordered pair to help graph. x,0,y,4 But my book says the next ordered pair is -8x and 4y. I would like to know why? How did they get the second pair? I know that because of < it is a slashed line when you graph.
Any help would be greatly appreciated.
Thanks, Liz
Click here to see answer by venugopalramana(3286)

Question 32141: The line through (-2, 4) that is perpendicular to the x-axis
Am I on the right track, this line is horizontal?
Click here to see answer by stanbon(75887)

Question 32141: The line through (-2, 4) that is perpendicular to the x-axis
Am I on the right track, this line is horizontal?
Click here to see answer by mukhopadhyay(490)

Question 32079: Q: Solve each system by the addition method. Indicate whther each system is independent, inconsistent, or dependent.
18. -3x + y = 3
2x - 3y = 5
Click here to see answer by mukhopadhyay(490)

Question 31924: write the piont slope form of the equation of the line with slope -4 passing through the piont (5,2)
Click here to see answer by mukhopadhyay(490)

Question 32223: solve the parabola
y=-1/2(x-1)^2 + 2
i got the direction which is down, vertex (-1,2), aos x=-1, the y intercept -2.5 but i need help getting the x intercept
Click here to see answer by Earlsdon(6294)

Question 32078: Q: Solve each system by the substitution method. Indicate whether each system is independent, inconsistent, or dependent.
8. X - Y = 3
3X - 2Y = 3

Click here to see answer by mukhopadhyay(490)

Question 32284: I am desperate i have no idea how to graph this
3x+y=5
-2x+3y=4
I can only get the first equation wich is y=-3x+5 I can graph this.
But i cant come up with the second one. But i think it is y=2/3x+4/3.
Can some one please help me graph it i cant fuiguere it out.!!!

Click here to see answer by mukhopadhyay(490)

Question 31937: how would you graph 2f(x)-4 if you were given the graph of x?
Thank you,
Alexus
Click here to see answer by mukhopadhyay(490)

Question 32318: Bob and Moe set off at the same time on a 30km walk for charity. Bob who has trained all year for this event, walks 1.4km/h faster than Moe, but sees a friend en route and stops to talk for 20 min. Even with this delay, Bob finished the walk 2 hours ahead of Moe. How fast was each person walking, and how long did it take for each person to finish the walk?
Click here to see answer by Paul(988)

Question 32504: Can you help me find the slope and y-intercept of X+Y=8 and the other problem is 2x+y=6 ?
Click here to see answer by checkley71(8403)

Question 32507: Can you help me find the slope and y-intercept of X+Y=8 and the other problem is 2x+y=6 ?
Click here to see answer by stanbon(75887)

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