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

Tutors Answer Your Questions about Graphs (FREE)

Question 1003048: I need help with -2(x+8) less than or equal to 8
Click here to see answer by rfer(16322)

Question 1003048: I need help with -2(x+8) less than or equal to 8
Click here to see answer by MathTherapy(10551)

Question 1003050: x-5
___ < -3
2
Click here to see answer by josgarithmetic(39617)

Question 1003050: x-5
___ < -3
2
Click here to see answer by MathTherapy(10551)

Question 1003109: Find an equation in slope intercept form that passes through the points (9,2) and (-2, 6)
Click here to see answer by solver91311(24713)

Question 1003161: Solve the following system of equations by graphing
y=-1/2x-3
4x-2y=16
Click here to see answer by rothauserc(4718)

Question 1003159: Without graphing, answer the following questions for the following linear system.
4x+3y=7
28x+21y=5
A) is the system inconsistent or the equations dependent, or neither
B) is the graph a pair of intersecting lines, a pair of parallel lines or one line
C) does the system have one solution, no solution, or an infinite number of solutions.
Click here to see answer by MathLover1(20849)

Question 1003194: is y=2x+5 linaer or not linaer show your work

Click here to see answer by fractalier(6550)

Question 1003194: is y=2x+5 linaer or not linaer show your work

Click here to see answer by addingup(3677)

Question 1003198: graph the line with slope -3/4 passing through the point (-3,3)
Click here to see answer by josgarithmetic(39617)

Question 1003206: Solve the following system of equations by graphing. If the system is inconsistent or the equations are dependent, say so
5x-3y=2
10x-6y=4
Click here to see answer by Alan3354(69443)

Question 1003205: Solve the following system of equations by graphing

x-2y=-4
x+2y=8
Click here to see answer by fractalier(6550)

Question 1003211: Why does y=2x and y=-2x look the way they do graphically? why is it that plugging into a calculator the graph of y=2x looks like a line. And the y=-2x is a line but inverted? How do I know what graphs are suppose to look like?
How does this work?
Thanks
Click here to see answer by fractalier(6550)

Question 1003160: The price per unit, p and the demand x, for a particular material are related by the linear equation p=40-2/5x, while the supply is given by the linear equation p= 2/5x. At what value of p does supply equal demand?
Click here to see answer by fractalier(6550)

Question 1003273: I need help graphing this

5x - 2y < 2
Click here to see answer by josgarithmetic(39617)

Question 1003272: Can someone help me graph this?
4x + 3y ≥ -15

Click here to see answer by josgarithmetic(39617)

Question 1003274: Without graphing, answer the following questions for the following linear system.
x+3y=0
15y=-5x
A) is the system inconsistent or the equations dependent, or neither
B) is the graph a pair of intersecting lines, a pair of parallel lines or one line
C) does the system have one solution, no solution, or an infinite number of solutions.

Click here to see answer by mananth(16946)

Question 1003428: Without graphing, answer the following questions for the following linear system.
x+2y=0
6y=-3x
A) is the system inconsistent or the equations dependent, or neither
B) is the graph a pair of intersecting lines, a pair of parallel lines or one line
C) does the system have one solution, no solution, or an infinite number of solutions.

Click here to see answer by Alan3354(69443)

Question 1003413: what is the slope-intercept of -3/4 and y-intercept of -5
Click here to see answer by fractalier(6550)

Question 1003413: what is the slope-intercept of -3/4 and y-intercept of -5
Click here to see answer by Alan3354(69443)

Question 1003431: Without graphing, answer the following questions for the following linear system.
x+2y=0
6y=-3x
A) is the system inconsistent or the equations dependent, or neither?
B) is the graph a pair of intersecting lines, a pair of parallel lines or one line?
C) does the system have one solution, no solution, or an infinite number of solutions?
Click here to see answer by Alan3354(69443)

Question 1003616: A quadratic function has a minimum of -8 and an x-intercept of -5. Its axis of symmetry is x=-3. Find the y-intercept of this quadratic function.
Click here to see answer by stanbon(75887)

Question 1003728: the distance of p to 3 is at most f. what is the statement in terms of inequalities
Click here to see answer by josgarithmetic(39617)

Question 1003728: the distance of p to 3 is at most f. what is the statement in terms of inequalities
Click here to see answer by jim_thompson5910(35256)

Question 1003829: Hello, My brother is taking a math class online for univ of phoenix. It is point slope equations and we are able to figure everything out except the last part which solves for y. example problem is below.
Slope = 3/4 Point - (6,-1)
Here is our work:
y-y1=m(x-x1)
y-(-1)=3/4(x-6)
y+1=3/4(x-6)
now the answer we found on a calculator online states y=3/4x-11/2
we cannot for the life of us figure out how to get to that answer. Please help.
Thank you!!!
Click here to see answer by KMST(5328)

Question 1003848: Determine which two equations represent perpendicular lines.
(a) y = 3/10x � 5
(b) y = 5x � 3/10
(c) y = -1/5x + 3/10
(d) y = 1/5x � 3/10
Click here to see answer by Boreal(15235)

Question 1003842: Find the area of the rectangle whose vertices are the points with coordinates (5,2),(5,-6),(0,-6),and (0,2).
Click here to see answer by MathLover1(20849)

Question 1003904: Graph the equation
y + 3 = 2 (x - 2)

I am trying to help my 8th grader and honestly have not done math in 15 years. Thanks for your help
Please submit to malugi1616@gmail.com
Appreciate your help
Click here to see answer by josgarithmetic(39617)

Question 1003913: Four years after a hedge maple tree was planted, its height was 9 feet. Eight years after it was planted, the hedge tree height was 12 feet. What is the growth rate of the hedge maple? what was its height when it was planted?
Please show work.

Thanks for your help
Click here to see answer by josgarithmetic(39617)

Question 1003912: A line passes through the points (-2,3), (2,5), and (6, k). Find the value of k. Explain your steps
Thanks for your help
Click here to see answer by josgarithmetic(39617)

Question 1004036: I am looking the the relationship pattern between the ordered pairs X & y
X plots are 8, 16, 24, 32, 40 Y Plots are 8, 4, 0, -4, -8
Click here to see answer by Boreal(15235)

Question 1004055: A golf ball is hit into the air, and its height y in feet after x seconds is given by y=-17x^2+238x
a)find the vertex of this parabola
b) intercept the vertex
Click here to see answer by stanbon(75887)

Question 1004095: How do you graph y=-3x+10
Click here to see answer by fractalier(6550)

Question 1004149: Graph the following lines on the same graph and find the point where the lines intersect.
Y=-3x+6
Y=X-6
Click here to see answer by macston(5194)

Question 1004189: Is my answer correct to this equation?
The directions are to: Write an equation for the line in point/slope form and slope/intercept form that has the given condition.
The problem is: x-intercept = 6 and y-intercept = -8
My answer is:
(6,0) , (0,-8)
y-0= -8-0/0-6(x-6)
y-0= 4/3(x-6)
y-0=4/3x-8
y=4/3x-8

Click here to see answer by Boreal(15235)

Question 1004386: i was given an equation y=-x-6
I was told to find three sets of points to graph. I got the answers wrong and the right answers that was given to me was (-1, -5), (0, -6), (1, -7) can someone explain me how we got these sets of points from the given equation? thank you

Click here to see answer by richard1234(7193)

Question 1004426: Please help me find the intersection point between
Y= -2x + 5
Y= 4x -1
Click here to see answer by rfer(16322)

Question 1004490: What are the following in standard form?
1. 8-5y=-2x
2. 6x=y+3

Click here to see answer by josgarithmetic(39617)

Question 1004466: Substitute in the given function and combine. [Give exact answer in fraction form.]
if f(x)=4/x and g(x)=7x find f(8)-g(1/7)
Click here to see answer by Fombitz(32388)

Question 1004592: NASA launches a rocket in t=0 seconds. It's height, in meters above sea-level, in terms of time is given by h--4.9t^2+106+381.
How high is the rocket after 5 seconds?
How high was the rocket when it was initially launched?
Click here to see answer by fractalier(6550)

Question 1004600: solve the simultaneous
equations graphically x-2y=1 & x+2y=1
Click here to see answer by rothauserc(4718)

Question 1004493: can you find the slope of the line that passes through each pair of points?
1. (-2,5),(8,-4)
2. (6,7),(2,4)
3. (-4,-5),(-3,-9)
4. (6,-2),(-3,7)
Click here to see answer by MathLover1(20849)

Question 1004648: What is x+y greater than equal to 19

Click here to see answer by fractalier(6550)

Question 1004738: Solve the system of linear equations
11x - 7y = -14
x - 2y = -4
Click here to see answer by fractalier(6550)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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20746..20790, 20791..20835, 20836..20880, 20881..20925, 20926..20970, 20971..21015, 21016..21060, 21061..21105, 21106..21150, 21151..21195, 21196..21240, 21241..21285, 21286..21330, 21331..21375, 21376..21420, 21421..21465, 21466..21510, 21511..21555, 21556..21600, 21601..21645, 21646..21690, 21691..21735, 21736..21780, 21781..21825, 21826..21870, 21871..21915, 21916..21960, 21961..22005, 22006..22050, 22051..22095, 22096..22140, 22141..22185, 22186..22230, 22231..22275, 22276..22320, 22321..22365, 22366..22410, 22411..22455, 22456..22500, 22501..22545, 22546..22590, 22591..22635, 22636..22680, 22681..22725, 22726..22770, 22771..22815, 22816..22860, 22861..22905, 22906..22950, 22951..22995, 22996..23040, 23041..23085, 23086..23130, 23131..23175, 23176..23220, 23221..23265, 23266..23310, 23311..23355, 23356..23400, 23401..23445, 23446..23490, 23491..23535, 23536..23580, 23581..23625, 23626..23670, 23671..23715, 23716..23760, 23761..23805, 23806..23850, 23851..23895, 23896..23940, 23941..23985, 23986..24030, 24031..24075, 24076..24120, 24121..24165, 24166..24210, 24211..24255, 24256..24300, 24301..24345, 24346..24390, 24391..24435, 24436..24480, 24481..24525, 24526..24570, 24571..24615, 24616..24660, 24661..24705, 24706..24750, 24751..24795, 24796..24840, 24841..24885, 24886..24930, 24931..24975