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

Tutors Answer Your Questions about Graphs (FREE)

Question 608010: the sum of two numbers is 16. the difference is 4. what are the two numbers ?

Click here to see answer by ewatrrr(24785)

Question 608072: f(x)=2-2x^2
Estimate the intervals on which the function is increasing or decreasing and estimate any relative maxima or minima. Thanks and could you also show work.
Click here to see answer by ewatrrr(24785)

Question 608122: Graph the quadractic function. Give the vertex and axis of symmetry, Domain and range.
1. f(x)=x2-6x+5
2. f(x)= -2(x-3)2(+1)
3. -6x+4x2+7x-9/x-2
4. 3x3-5x+4/x+1

Click here to see answer by Alan3354(69443)

Question 608574: Ok wats (negative 1,5) (negative 7,o) find the distance between each pair of.points
Click here to see answer by solver91311(24713)

Question 608622: -6x<18
Click here to see answer by jim_thompson5910(35256)

Question 608733: Im having a hard time finding the answer to this problem please help. It says what is the shape of the graph of 9x+7y=-1000? How do you know? thank you
Click here to see answer by scott8148(6628)

Question 608976: Can someone please explain to me what I am doing wrong?
In my book is asking to determine the slope and y intercept of the line represented by the given equation, and to graph the line.
-4x+9y=18
I changed it into slope intercept:
y=(4/9)x + 2
m=4/9
b=2
when graphing the line I get one point (0,2) and then I did the vertical change to horizontal change and got (9,6) but in my book answers page it shows a graph line with points (0,2) and (-4.5,0)?
Thanks
Click here to see answer by flame8855(424)

Question 609132: Calcalate the length of B(2,7)D(0,1)
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Question 609132: Calcalate the length of B(2,7)D(0,1)
Click here to see answer by ewatrrr(24785)

Question 609179: Write each equation in slope-intercept form and graph each equation. Then, indicate whether the system is consistent, inconsistent, or dependent. for a consistent system, enter the solution as an ordered pair.
-x + y = -14
6x + 3y = 21
Click here to see answer by solver91311(24713)

Question 609254: Write a point slope equation for m=7/2 and (-3,4)
Click here to see answer by math-vortex(648)

Question 609566: Find three ordered pairs that satisfy the equation.
y = x+8
Click here to see answer by mathie123(224)

Question 609572: Solve the inequalities by graphing. Select the correct graph.
5x + 6y >1
y - x < 0

Click here to see answer by solver91311(24713)

Question 478090: If a line has no y-intercept, what can you say about the line? What if a line has no x-intercept? Think of a real-life situation where a graph would have no x- or y-intercept. Will that always be true for that situation?

Click here to see answer by bellaloca39(1)

Question 609781: how do I find the intercepts if any to the equation Ax+By=C
Click here to see answer by jim_thompson5910(35256)

Question 609815: How do you graph x to the second power + 6x + 9 = 0?
Click here to see answer by lynnlo(4176)

Question 609455: What would be a real life situation where a graph would have no x intercept or y intercept? Then, will what you say about the line always be true in the situation?
Click here to see answer by richard1234(7193)

Question 610153: Write the slope intercept of the equation whose coordinates are (4,3)(-6,-2)
Click here to see answer by flame8855(424)

Question 610086: which best represents the graph of y=-1/2x+5
Click here to see answer by jim_thompson5910(35256)

Question 610301: The width of a rectangle is fixed at 10cm. What lengths will make the perimeter greater than 84 cm?
Click here to see answer by flame8855(424)

Question 610349: graph
y=-6
Click here to see answer by flame8855(424)

Question 610447: We need help with functions and representing linear functions. our question is

f(x)=x/2+2
Click here to see answer by Alan3354(69443)

Question 610459: x+y=13
x-y=-3
solve the system of equations by graphing then classify the system
Click here to see answer by Alan3354(69443)

Question 610568: What are the different equations for the different forms of a line (ex. linear, quadratic, exponential, absolute value, etc.)?
Click here to see answer by AnlytcPhil(1806)

Question 610808: 5x^2+2y^2=10
Need graph, vertices, and foci.
Click here to see answer by ewatrrr(24785)

Question 611048: graph by plotting the given point -2,1
Click here to see answer by solver91311(24713)

Question 611049: graph y=-x^2
Click here to see answer by radh(108)

Question 611049: graph y=-x^2
Click here to see answer by ashipm01(26)

Question 611043: graph f(x) =3x-3
Click here to see answer by jim_thompson5910(35256)

Question 611383: how do you graph x^2+y+2=0
Click here to see answer by solver91311(24713)

Question 611228: |6x+3|=6
Click here to see answer by ankor@dixie-net.com(22740)

Question 611417: is this equation in slope-intercept form, 3y=2x+3. If it is not tell me how does it look in Slope-intercept form.
Click here to see answer by Alan3354(69443)

Question 611510: Sometime ago, I asked a question and did not either submit correctly or possibly deleted the answer. Please try again. Thank you!
Graph the function:
y=-4xsqared +4 and y=3.5xsquared and y=5xcubed and y=6xcubed -2

Click here to see answer by lwsshak3(11628)

Question 611553: What is the vertex of the parabola defined by---
y=-2(x+3)^2+5
The answer choices are; A. (-3,5) B. (-3,-5) C. (3,5) D. (3,-5)
Click here to see answer by richwmiller(17219)

Question 611553: What is the vertex of the parabola defined by---
y=-2(x+3)^2+5
The answer choices are; A. (-3,5) B. (-3,-5) C. (3,5) D. (3,-5)
Click here to see answer by Edwin McCravy(20054)

Question 611567: Please help me to
Prove that M=y/x-b/x in graphs?
Click here to see answer by Alan3354(69443)

Question 611637:
Which of the following is the best description of the solution of a − 4 > 1 and a + 2 < 1?
Click here to see answer by solver91311(24713)

Question 611605: y+x=-2

Click here to see answer by lynnlo(4176)

Question 612031: The rectangular playing area of a professional football field is 100 yards long. The perimeter of the playing area is 920 feet. The formula for the perimeter of a rectangle is P = 2l + 2w. What is the width of the playing area?
In the perimeter formula , l is the length and w is the width.
Name the variables in the formula.
Look at the problem. Which variables are known? Which are unknown?
Complete the sentence to describe the relationship between l, w, and P in words.

If you know l and w and want to find P,

Click here to see answer by solver91311(24713)

Question 612182: D=ABC for A
Click here to see answer by Edwin McCravy(20054)

Question 612180: 8- 7/5x > or equal to 9
-----
(7/5)x >= 8-9
------------------
(7/5)x >= -1
x = -5/7
========================
Cheers,
Stan H.
========================
Click here to see answer by stanbon(75887)

Question 612260: x^2-4x-60
Click here to see answer by jim_thompson5910(35256)

Question 612367: please help me solve this equation choose the equation of the line parallel to the line that passes x-2 that passes through the point (0,4)
Click here to see answer by flame8855(424)

Question 612312: range and domain of y=1/x^2

Click here to see answer by lynnlo(4176)

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