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

Tutors Answer Your Questions about Graphs (FREE)

Question 198423: Solve the following system of equations, and check:
2x+3y=-4
5x+2y=1

Click here to see answer by jim_thompson5910(35256)

Question 198423: Solve the following system of equations, and check:
2x+3y=-4
5x+2y=1

Click here to see answer by m.keenan(1)

Question 198414: The graphs of the equations 4x-y=6 and x+y=4 intersect at the point whose coordinates are
1.(2,-2)
2.(5,-1)
3.(1,3)
4.(2,2)
Click here to see answer by nerdybill(7384)

Question 195774: fine the slope of the y intercept of the graph of 6x-5y=12
Click here to see answer by arallie(162)

Question 198501: Find the equation of the axis of symmetry and the coordinates of the turning point for y=x^2+4x-3
Click here to see answer by stanbon(75887)

Question 198515: Solve the following system of equations for the positive value of y:
x = 2y
x + y^2 = 15
Click here to see answer by stanbon(75887)

Question 198500: Y=x^2-2x-1
Y=-3x+5
Click here to see answer by jojo14344(1513)

Question 198634: can someone help
y=2x^2-4x-1
the vertex (1,-3)
y-intercept (0,-1)
the x-intercepts
enter the x-intercept with the smaller x value
( , 0 )??
enter the x-intercept with the larger x value
(2.224,0)
can not figure out the the first part of the smaller x value question
can someone help please
Click here to see answer by edjones(8007)

Question 198703: Please solve -0.8x < -16.
My answer:
The solution is, {x|x> 20}
Click here to see answer by arallie(162)

Question 198703: Please solve -0.8x < -16.
My answer:
The solution is, {x|x> 20}
Click here to see answer by solver91311(24713)

Question 198818: passes through (1,3) and is parellel to the graph of the relation 4x+y=6
Click here to see answer by jojo14344(1513)

Question 198892: If the point (2,k)lies on the graph of the equation y=3x-5, what is the value of k?
Click here to see answer by Alan3354(69443)

Question 198919: Find the slope of the y-intercept?
f(x)= -8x-10.
The slope is _ ?
The y-intercept is (0, ).
Thank you.
Click here to see answer by solver91311(24713)

Question 198919: Find the slope of the y-intercept?
f(x)= -8x-10.
The slope is _ ?
The y-intercept is (0, ).
Thank you.
Click here to see answer by actuary(112)

Question 198919: Find the slope of the y-intercept?
f(x)= -8x-10.
The slope is _ ?
The y-intercept is (0, ).
Thank you.
Click here to see answer by anantha(86)

Question 198879: How do I write an equation in standard form of the line that contains (1,1) and (6,-1)? thanks
Click here to see answer by checkley75(3666)

Question 198496: Graph the solution: 3x+y=>6 y<= -3x-2
Click here to see answer by checkley75(3666)

Question 199015: The slope of the graph of the equation y=2x is
1)1
2)2
3)0
4)1 over 2
Click here to see answer by AbyBavy(4)

Question 199068: Can you please help me to identify and solve this graph to see if its consistent or inconsistent and independent or dependent?

Y = 1/2x 9/2
Y = x + 6
Click here to see answer by solver91311(24713)

Question 199092: Solve graphically and check:
y=x+1
2x+y=7
Click here to see answer by solver91311(24713)

Question 199004: LInear equations verses graphs. Which is more informative and why?
text book is intermediate algebra, 4th edition.
Click here to see answer by solver91311(24713)

Question 199110: The chart below shows the result of a survey taken of one section of an arena at a concert. People were asked their ages as they were seated.
a)Construct a frequency histogram for the frequency table below.
Age Frequency
0-5 18
6-10 23
11-15 12
16-20 8
21-25 12
26-30 15
31-35 7
36-40 5
b)What is the total number of people who were less than 16 years old? 53

Click here to see answer by rfer(16322)

Question 199228: How do I write y = 5/7x + 9 in standard form?
Thank you

Click here to see answer by ankor@dixie-net.com(22740)

Question 199218: Solve the system of equations by graphing. Then classify the system.
X+y=9
x-y=-1
what is the solution to the system?
Click here to see answer by checkley77(12844)

Question 199369: What is the equation of the line that passes through the point (-3, -5) with slope 4?
Click here to see answer by solver91311(24713)

Question 199385: Determine the standard form of the equation of the line that contains (5,-1) and (-3, -9).
Click here to see answer by solver91311(24713)

Question 199388: Give the equation of the line that contains (7, -9) and (7, 3).
Click here to see answer by solver91311(24713)

Question 199402: Find the equation, in standard form, of the line perpendicular to 2x + 3y = -5 and passing through (3, -5). Write the equation in standard form, with all integer coefficients.
Click here to see answer by solver91311(24713)

Question 199419: y=-2x-1
Click here to see answer by rfer(16322)

Question 199367: Which equation is a direct variation with a constant of variation of 2/3?
A)y=2x+3 B)2y=3x C)3y=2x D)x=2y+3
Click here to see answer by Edwin McCravy(20054)

Question 199455: how can i solve this 3x-2y=12 if x=2,-2
please help me in this question of mine because it's very confusing to me and it's difficult to solve,...pls,...
,..tHanks ,...
Click here to see answer by stanbon(75887)

Question 199434: solve 5x + 6y = 18 solve for y
When graphed this equation would be a line. Be examining your answer to part a, what is the slope and y-intercept of this line?
slope = ___
y-intercept=_____
what is the corresponding value of y when x=12
Click here to see answer by checkley77(12844)

Question 199503: Can you please show me the graph that goes along with the inequality y<1/4-2?
It would be greatly appreciated.
Thank you
Click here to see answer by checkley77(12844)

Question 199532: transform 20x+8y=32 into slope intercept form
Click here to see answer by jim_thompson5910(35256)

Question 199526: A) solve 5x + 6y = 18 for y
B) When graphed this equation would be a line. By examining your answer to part a, what is the slope and y-intercept of this line?
slope=____
y-intercept=____
C) Using your answer from part a, find the corresponding value of y when x = 12
Click here to see answer by nerdybill(7384)

Question 199486: I didnt get at all much further with this problem; If the parabola y-2=a(x-3)^2 goes through the point (2,0), what is the value of �a�??
Click here to see answer by rfer(16322)

Question 199547: what is the domain?
Click here to see answer by stanbon(75887)

Question 199555: graph the function f(x)=(-1/9)(x+2)(x-6)+5 in standard viewing on your calculator.

Click here to see answer by Edwin McCravy(20054)

Question 199370: What is the equation of the line that contains (7, -9) and (7, 3)?
Click here to see answer by jim_thompson5910(35256)

Question 199593: Hi all, I was hoping someone could help me with the following Graphing problems im having. I need to find the x and y intercepts, if any, and turning points for the following functions. (Each one on seperate graphs)
1. y = 2x^2-8x+9
2. y = 2x^2-3x-1
3. y = -2x^2-7x+4
4. y = x^2-x-2
I f you could please show the working with descriptions on each equations that would be very helpful. A fully labelled sketch of the function including the points and axis of symmetry would also be great.
Thanks, -Nick
Click here to see answer by solver91311(24713)

Question 199700: Hi everyone, Im looking for some help and guidance with the following graphing and equations problems. Id like to learn how to do the following equations, so step by step solutions would be great.
1. Find the equation of the line passing through the point (-2,5) and parallel to the y axis.
2. A line passes through the point (1,3) and (2,5). Find the euation of this line.
3. Find the y-intercept, the x-intercept, if any, and turning point of the function: y=2x^2-8x+9.
If someone could show me the full workings of the previous problems that would be awesome.
Thanks, -Nick.
Click here to see answer by solver91311(24713)

Question 199715: find the equation of a line that is perpendicular to the graph of 3x-4y=-21, and goes through the point (-1,0). Write the answer in slope-intercept and standard form.
Click here to see answer by J2R2R(94)

Question 199750: Line I goes through (1,3) and is parallel to the line through (4,3) and (-3,1). Find the slope of I. Choose from:
A) 7/2
B) 3
C) 2/7
D) Undefined
Click here to see answer by rfer(16322)

Question 199787: What is the translation of f(x)=x^2 represented by g(x)
Click here to see answer by stanbon(75887)

Question 199792: Find the y-intercept and the x-intercept for the equation
-8x + y = 28
-8(0) + y= 28
Y=28
Y intercept is (0,28)
-8x + 0 =28
-8x = 28
X intercept is (-2/7,0) or (-4/14,0)????
Can you help me which answer is right and why?
Thank you!
Click here to see answer by solver91311(24713)

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