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

Tutors Answer Your Questions about Graphs (FREE)

Question 305140: what are the intercepts of 2x+4y=-1?
Click here to see answer by checkley77(12569)

Question 305182: 3 quarts of water are needed to water 1 square foot of lawn. How many gallons of water will be need to water a lawn that measures 30 feets by 60 feet?
Click here to see answer by richwmiller(9135)

Question 305307: What is the y-intercept of 9x-6y=12
Click here to see answer by nerdybill(6958)

Question 305376: Which point is a solution of the inequality y>-3x+1?
A (2,-1)
B (0,0)
C (-12,4)
D (0,-1)

Click here to see answer by Edwin McCravy(8909)

Question 305363: the values for y when y = (x-2)(x-8)
Click here to see answer by Fombitz(13828)

Question 305375: Which point is a solution of the inequality 1/2x-4y<=4
Click here to see answer by Fombitz(13828)

Question 305383: 2x + 4y = 28
x - 2y = 10
Click here to see answer by Fombitz(13828)

Question 305455: I am trying to graph the equation -6x+10y=-60 and 7x-6y=-42 on the cognitive tudor I can not find the correct intersections for x and y to complete the problem can you help me please!
Click here to see answer by richwmiller(9135)

Question 305380: y<=1/2x+3
y>=3/2x-1
for the system of inequalities above, which of the following statements describes the origin, 0,0 , as a possible solution?
A the origin is a solution for y<=1/2x+3 but not y>=3/2x-1.
B the origin is a solution for y>=3/2x-1 but not y<=1/2x+3.
C the origin is not a solution for eather equation.
D the origin is a solution for the entire system.
Click here to see answer by Fombitz(13828)

Question 305650: Ok guys Im stuck again and need your help on this damn Cognitive Tudor program, the help and hints on it suck! Cant wait until I finish this class!
I need help to...Graph the equation x-3.1y=8.8 and 9x-9y=-37....I need to find their intersection again on the graph....Please someone help me again! Thanks!
Click here to see answer by richwmiller(9135)

Question 305716: Graph the line, given a point: (3,-5) and use the slope m=2/3 to generate another point,
Click here to see answer by Fombitz(13828)

Question 305820: Find the # of square units contained in the region bordered by the graphs of the functions y=3x, x=3y, 3x+y=30?
Click here to see answer by Fombitz(13828)

Question 305820: Find the # of square units contained in the region bordered by the graphs of the functions y=3x, x=3y, 3x+y=30?
Click here to see answer by CharlesG2(828)

Question 305916: What is the slope of 4x - y + 3 = 0
Click here to see answer by richwmiller(9135)

Question 305984: Ok guys these graphs are really getting to me :(
My new question today is Graph the equation -2.2x+3.9y=-7.8 and -2.7x + 0.9y =7.3
I NEED TO FIND THEIR EXACT INTERSECTION!
NO matter how many times I try and answer it myself it is wrong!
Click here to see answer by JBarnum(2044)

Question 306156: What is the y-coordinate of the point of intersection for x - y = 9 and x + 6y = -12?
Click here to see answer by stanbon(57347)

Question 306155: What is the x-coordinate of the point of intersection for y = x - 2 and 4x + 4y = 8?
Click here to see answer by Fombitz(13828)

Question 306174: i have found the y intercept and the vertex for the following equation however my graph is supposedly not right. My graders are saying it should open upside down and mine opens upward. so where am i messing up? my yintercept is 0,-5 and vertex is -1,-2. equation is y=-3x^2-6x-5
Click here to see answer by Fombitz(13828)

Question 306180: can you tell me if I'm correct
what is the x and y intercept?
y=1/4x-24
(6,0)(0,-24)
thanks
Click here to see answer by themathtutor2009(81)

Question 306228: How would you graph y>-3x+1 and what would you call this?
Click here to see answer by Fombitz(13828)

Question 306459: parallel perpendicular or neither
-2x+4y=8
2x+4y=2
Click here to see answer by richwmiller(9135)

Question 306589: Given the function defined by t(x) = x^3 – 3x^2 – 3, find the following
t(-1)

Can anyone explain how this is done?
Click here to see answer by themathtutor2009(81)

Question 306587: find the solution to the system by the addition method. Check your answers.
4x – 5t = 18
6x +10t =(-8)

Click here to see answer by mananth(12270)

Question 306587: find the solution to the system by the addition method. Check your answers.
4x – 5t = 18
6x +10t =(-8)

Click here to see answer by MathTherapy(1424)

Question 306592: Find an equation of the line satisfying the conditions given. Express your answer in standard form.
Parallel to 3x – y = (-5) and passing through (-1, 0)
is 9x +y = -3 the right answer? That's what I got but I really have no idea what I am doing.
Click here to see answer by Fombitz(13828)

Question 306684: Ok I need another intersection again.
For graph the inequalities 9x+8y<72 ans -7x-44<=28
I need to know what their intersection numbers are on the graph! I cannot figure it out!
Help Please!
Click here to see answer by stanbon(57347)

Question 306846: which is a solution of the inequality 1/2x - 4y < 4
Click here to see answer by texttutoring(324)

Question 306846: which is a solution of the inequality 1/2x - 4y < 4
Click here to see answer by JBarnum(2044)

Question 306831: im given two points (-2/5,2/5) and (4/3,2/3) put into slope intercept form? and standard form?

Click here to see answer by Fombitz(13828)

Question 306928: what is the relationship between lines y=2x-7 and y=1/2x-2
parallel
perpendicular
neither
thankyou
Click here to see answer by themathtutor2009(81)

Question 306932: What is the relationship between the lines y=-1/4x+15 and y=4x-17
thank you
Click here to see answer by richwmiller(9135)

Question 306998: which graph represents 3x+4y=-20?

Click here to see answer by Fombitz(13828)

Question 307095: 3-1/4y=6x I need the slope and the y intercept
Click here to see answer by rfer(12660)

Question 307155: Graph: y=square root of x+8 -2
Click here to see answer by Fombitz(13828)

Question 307154: Graph:
y=2/3 times 4^x
Click here to see answer by Fombitz(13828)

Question 307212: y=4x2-5x-1 What direction would the graph of this equation face?
Click here to see answer by jim_thompson5910(28595)

Question 307345: where does the graph of y=4x-7 cross the y axis?
Click here to see answer by Alan3354(30993)

Question 307367: So lets say I have the equation:
y = -8 - 4
How do I graph that? I get that the y-intercept is 4, but how do I do x? Please explain what I do and why I do it.
Click here to see answer by checkley77(12569)

Question 307408: given this linear equation y=0.15x+0.79 what is the slope or rate of exchange and what would the y-intercept be and what does it represent.?
Click here to see answer by rapaljer(4667)

Question 307412: I was reviewing the quadratic equation y=-3x^2-6x-5 for problem #252391. I had already found that if x=0 then y=-5. I'm having trouble creating a table of ordered pairs to use in graphing using excel. I would think I need at least 3 sets of ordered pairs to be able to do this. Can someone show me what other pairs to use and how they were figured. I want to understand this, I'm not very good at these equations. Thanks!
Click here to see answer by jim_thompson5910(28595)

Question 307695: How do you write an equation in standard form of the line with these given characteristics:
passes through (-2,2) and (3,6)
Click here to see answer by Alan3354(30993)

Question 307639: Given one point on the graph (0, -11) and the slope, m = -2, develop an equation in the slope-intercept format
Click here to see answer by checkley77(12569)

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