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

Tutors Answer Your Questions about Graphs (FREE)

Question 522817: Solve the system of equations by the substitution method.
x/8 - y/5 = 1
x/6 -y = 5
Click here to see answer by Alan3354(69443)

Question 522897: Find the x- and y-intercepts for this equation. Then graph the equation.
9y - 3x = -6
Click here to see answer by jim_thompson5910(35256)

Question 522924: I need help with my appendix sheet. I do not understand what to do in this website to help me. My instructor told me to come here and your tool to graph it. I do not know what to do. Please help.
Click here to see answer by stanbon(75887)

Question 522935: how couls i graph thisproblem x+2y=0
Click here to see answer by oberobic(2304)

Question 522933: (x^6-9x^3+14)/(x^3-2)
Click here to see answer by mananth(16946)

Question 522962: 1. The width of a rectangle is 1/4 of the length. The perimeter is 130 cm. Find the length and width
Click here to see answer by Maths68(1474)

Question 523188: Determine if (3/4*-2)is a solution to -4x-7y=11?
Click here to see answer by mananth(16946)

Question 523190: plot graph y=-2/7x+3 find the y coordinates of the points(-7)(0)(7). Plot the points and graph the linear equation.
Click here to see answer by mananth(16946)

Question 523212: Find the x-and y-intercepts and graph the equation plotting the intercepts
3x-6y=-21.
Click here to see answer by mananth(16946)

Question 524080: Find the equation that is parallel to the line x= -19 and contains the point (-7,1).
Click here to see answer by Alan3354(69443)

Question 524140: Please help graph the function

Click here to see answer by Edwin McCravy(20054)

Question 524171: Please help me solve this. I tried to FOIL, but I do not foil well.
Write a quadratic equation that has the solutions 2 and 8.
Click here to see answer by ankor@dixie-net.com(22740)

Question 524208: please help me solve this. I am not so good at word problems.
The monthly profit in dollars that Carla makes on the sale of x automobiles is determined by the formula p=x^2 -4x-5. What values of x is her profit positive?
Click here to see answer by mananth(16946)

Question 524204: Please help me with this. I have no idea what I am doing.
1+√3 divided by -1-√2.
Click here to see answer by mananth(16946)

Question 524331: x2 + y2 = 9
x2 - y2 = 1
Click here to see answer by Alan3354(69443)

Question 524532: Solve -3=-2x+1 by graphing.

I know how to solve for x, but then I dont know how to create another point to create the line. thanks!
Click here to see answer by Edwin McCravy(20054)

Question 524672: find the value of x or y so that the line passing through the two points has the given slope
(-1,4),(x,3);m=1/5

Click here to see answer by stanbon(75887)

Question 524831: determine the number of x intercept.
the vertex is (3,4) and the parabola opens upward
Click here to see answer by solver91311(24713)

Question 524887: a. the sales representative informs you that there are 56 house for sale with two floor plans available. Use x to represent floor plan one and y to represent floor plan two. Write an equation that illustrates the situation
I think the answer is x+y=56
Her is where I get stuck;
The sales representative later indicates that there are six times as many home available with second floor plan than the first. Write an equation that illustrates this situation. Use the same variables you used in part a
is it x+6y=56
because I then must use substitution method to determine how many of each floor plan are available.
Please help
Click here to see answer by mananth(16946)

Question 524911: I could really use some help with this please.
Write a quadratic equation that has the solutions 2 and -8.
Click here to see answer by nerdybill(7384)

Question 524911: I could really use some help with this please.
Write a quadratic equation that has the solutions 2 and -8.
Click here to see answer by lagbens(14)

Question 525074: A small business buys a computer for $3300. After 4 years the value of the computer is expected to be $200. For accounting purposes the business uses linear depreciation to assess the value of the computer at a given time. This means that if V is the value of the computer at time t, then a linear equation is used to relate V and t.
(a) Find a linear equation that relates V and t.
Click here to see answer by stanbon(75887)

Question 525063: The cost of mailing a 3LB package from clearwater to denver with UPS is $15.
The cost varies directly with the weight of the package.
If you want to send a package that weighs 4 2/5 pounds how much would it cost?
use an equation to model the situation and come up with the solution.
Click here to see answer by stanbon(75887)

Question 525306: Write the slope-intercept equation for the line that passes through (-4, 6) and (2, -6)
Click here to see answer by oberobic(2304)

Question 525368: Please help me to solve this
a^2+6a+5
Click here to see answer by oberobic(2304)

Question 525355: Graphing the equation y+x= 14.

Click here to see answer by oberobic(2304)

Question 525398: I am having a hard time understanding standard normal distribution:
how would you figure this from a problem such as:
P(1.22 < Z < 2.15)
Click here to see answer by richard1234(7193)

Question 525630: what is the standard form of y-2=1/2(x+6)
i don't know if you multiply each side by 2 to get rid of the denominator first and then solve from there? if i did that then my answer would be y=x=8. is that right?
Click here to see answer by Maths68(1474)

Question 525775: What is the slope of (-4,2)(0,5)? Would it be -4/3??? Please help. Thanks
Click here to see answer by Alan3354(69443)

Question 525766: Please help me solve this problem. There's a table, and it looks kind of like this:
x | 1 | 2 | 3 | 4 | 5 |
__________________________
y | 7 | 11 | 15 | 19 | 23 |
Find a formula that relates x and y. (Hint: y = ?)
I've tried y = +4, but it was wrong, because I cannot figure out how to relate the two.
Click here to see answer by solver91311(24713)

Question 525783: in the equation y = 9x, does y vary directly with x
Click here to see answer by Alan3354(69443)

Question 525890: Graph each equation
y = 4x - 1
Click here to see answer by jim_thompson5910(35256)

Question 525943: what is the y-intercept of the graph of 9+x/2= -5+5?
Click here to see answer by oberobic(2304)

Question 525926: graph
y = -x, y = -3x
Click here to see answer by oberobic(2304)

Question 526140: On a graph where is the point of origin?

Click here to see answer by Alan3354(69443)

Question 526141: How do u perform slopes?
Click here to see answer by Alan3354(69443)

Question 526185: How would I graph the equation 150, 100, -5, 5, -10, 10, x^2-2x+1, 3-x

Click here to see answer by Alan3354(69443)

Question 526177: how to graph y=3 and x+2y=12
Click here to see answer by Alan3354(69443)

Question 526176: how to graph x-y=-1 and 3x-y=4
Click here to see answer by richwmiller(17219)

Question 526271: Write the equation of the line that passes through the point (6, -2) and has a slope of -2/3
Click here to see answer by solver91311(24713)

Question 526311: In the coordinate plane, the graphs of the equations x^2 + y^2 � 4x + 6y �12 =0 and y = ax^2 + bx + c have exactly 3 points in common . Two of these points are (3, -3) and (7, -3). What are all possible coordinates of the third point?

Click here to see answer by solver91311(24713)

Question 526373: Write the equation for the line: with y-intercept -1 and perpendicular to 3x-2y=6.
a. 3x+2y=6
b. 2x+3y=6
c. 2x-3y=-3
d. 2x-3y=3
e. 2x+3y=-3
Click here to see answer by oberobic(2304)

Question 526137: what are tables,graph and equations good for? when can i use them in another real life scenerio. what are the disadvantages and advantages of them?
Click here to see answer by richard1234(7193)

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