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

Tutors Answer Your Questions about Graphs (FREE)

Question 595613: y=3x-3. A perpendicular brace passes through the point (-7,9). Write an equation of the line that contains the brace.
Click here to see answer by math-vortex(648)

Question 595861: How do you find the y and x intercept of a line? I need a thorough explanation because I don't get this crap at all!
Click here to see answer by jim_thompson5910(35256)

Question 596105: 10 Men begin to work together on a job, but after some days, 4 of them left the job. As a
result the job which could have been completed in 40 days is completed in 50 days. How
many days after the commencement of the work did the 4 men leave?
(a) 25 (b) 30 (c) 10 (d) 15
Click here to see answer by josmiceli(19441)

Question 596183: Starting with the graph of , reflect the graph about the line x=-2.
Please help me; I missed class on Friday. Thanks.
Click here to see answer by jim_thompson5910(35256)

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 acs1234(1)

Question 596374: Greeting,
Would u pls help me with this:

Divide and simplify:
{{(a-4)(a+3)/a^2-a} � {2(a-4)/(a+3)(a-1)}}

Thanks a lot,
H.H
P.S:(This is the 2nd time that I am submitting this problem without receiving any answer :is it so difficult that no one could even try to solve it?)

Click here to see answer by Alan3354(69443)

Question 596377: Hello,
could u pls help me 2 solve this:

Subtract and simplify: (2x^2 + 5x � 4) � (3x^2 � 7x + 1)

Thank you,
H.H
P.S: This is the 2nd time that I am submitting this problem.
Click here to see answer by alicealc(293)

Question 596770: find and plot the 5 points on a graph
y=9/8x^3
Click here to see answer by Alan3354(69443)

Question 596753: Solve this system of linear equations:

Click here to see answer by math-vortex(648)

Question 596841: V = π r2h for h
Click here to see answer by jim_thompson5910(35256)

Question 596889:
Click here to see answer by jim_thompson5910(35256)

Question 596732: Can someone please show me how to graph the equation y=1/2x^2+1 using symmetric properties?
Click here to see answer by KMST(5328)

Question 597147: y=-x+7
Click here to see answer by saifoo.khan(162)

Question 597411: What is the slope of the line that contains the points (8,-3) and (-2,7)
Click here to see answer by wraith87(4)

Question 597454: f(x) = |x|-4
show seven points on graph table
Click here to see answer by stanbon(75887)

Question 597455: 3(r-6)+2>4(r+2)-21
graph, solution set notation, interval notation
Click here to see answer by lwsshak3(11628)

Question 598052: graph y= x^2 - 4 in a rectangular coordinate system
Click here to see answer by Alan3354(69443)

Question 598075: graph the line:
x + 4y = 16
my answer is x + 4 * y - 16 = 0, is this correct
now this is where I'm confused, how do I graph this on a line?
please help!! thank you
Click here to see answer by Alan3354(69443)

Question 598080: What is the slope of -10,0 and 5,-12
Click here to see answer by Alan3354(69443)

Question 598090: solve the equation: 6(W + 7) - 3 (W + 7) = 0 , my answer is -42, is this right
if not please show me step by step how to do this problem
thnk you
Click here to see answer by Alan3354(69443)

Question 598114: consider the following equation.
8y + 5x = -7
(a) Solve the equation for y. ( Do not use mixed numbers in your answer) y=
(b) Find three solutions of the equation.
(2, -17/8), (4, -27/8, (6, -37/8)
(2, -17/8) (4, -27/8), (6, 22/7)
(2, -3/8), (4, -27/8), (6, -37/8)
(2, 17/8), (4, 27/8), (6, 37/8)
please help me how do I do this
Click here to see answer by Edwin McCravy(20054)

Question 598370: solve the equation. (Enter solutions from smallest to largest. If there is no solution, enter NONE in the answer boxes.)
x^2 - 5x + 5 = 0
x =
x =
please can some one help me, step by step
Click here to see answer by jim_thompson5910(35256)

Question 598505: a line has the slope of 4 and it contains the point (2,7), find two other point on the line
Click here to see answer by rfer(16322)

Question 598637: the line 6x+8y+C=0 passes through (2,4). determine the value of C
Click here to see answer by Alan3354(69443)

Question 598778: Hello,
Could you pls help me on this?
Use the quadratic equation y = x^2 + 3x � 10.
Calculate the discriminant to determine the number of real roots
Thanks a lot.

Click here to see answer by Alan3354(69443)

Question 598772: Hi,
Would you pls tell me if this is a trick question? Or it's just an easy one & the answer is really p=100?
. If p varies directly with q, and p = 10 when q = 2, what is the value of p when q = 20?
Thanks a lot,
H.H

Click here to see answer by nerdybill(7384)

Question 598776: Greeting,
Would u pls help me with this:
Divide and simplify:
{{(a-4)(a+3)/a^2-a} � {2(a-4)/(a+3)(a-1)}}
Thanks a lot,
H.H
P.S:(This is the 3rd time that I am submitting this problem )
Click here to see answer by Alan3354(69443)

Question 598829: are thes lines parallel, perpendicular or neither?
y= -14x+11 and y= -1/14x-8
Click here to see answer by Alan3354(69443)

Question 598976: Sam has 953 points in his math class. He must have 67% of the 1500 points possible by the end of the term to receive credit for the class. What is the minimum number of additional points he must earn by the end of the term to receive credit for the class?
a) 1005 points
B) 52 points
c) 639 points
D) 547 points
E) None of the above
Click here to see answer by flame8855(424)

Question 599083: Can anyone help me with this problem? Thank you for your help!
Multiply and simplify
(9b)^2 * (9b)^15
Click here to see answer by flame8855(424)

Question 598953: Plz help me with 3x + 4y = 4. I tried to isolate x by subtracting 4y from both sides but now I'm stuck (3x + 4y - 4y= 4- 4y). If you could please show me a step by step that would be so great.
THanks
Angela
Click here to see answer by ankor@dixie-net.com(22740)

Question 599469: how do i graph the equation 3y=3
Click here to see answer by josmiceli(19441)

Question 600156: Solve graphically. a=1+b, b=5-2a. I got the answers a=2 and b=1 so then what? How do I graph it and solve graphically.
Click here to see answer by solver91311(24713)

Question 600381: show me how to find missing measure of a triangle that measures 17cm and 15cm?
Click here to see answer by solver91311(24713)

Question 600381: show me how to find missing measure of a triangle that measures 17cm and 15cm?
Click here to see answer by w_parminder(53)

Question 600378: show me how to find missing measure of a triangle that measures 17cm and 15cm?
Click here to see answer by solver91311(24713)

Question 600411: Y = x + 7
Click here to see answer by jim_thompson5910(35256)

Question 601065: Is the point (0,8) a solution of the system:
-3x+9y=72
9x+3y=24
Click here to see answer by solver91311(24713)

Question 601360: what is an inequality, in slope-intercept form, for the graph with the points (1,1) and (0,-2)?
Click here to see answer by Alan3354(69443)

Question 601456: use the direct variation equation y=1/8x to solve for y when x=3/4
Click here to see answer by stanbon(75887)

Question 601753: SOLVE 7x - 1 -2(x + 5) = - (x - 3)
Click here to see answer by stanbon(75887)

Question 601974: Hello I am having trouble with finding out the solution sets. the problem is 2/3(3x-6)> 12. Then i get multiple choice answers like the solution set is {x|x >
< and to simplify my answer please help
Click here to see answer by rfer(16322)

Question 602271: Hello,
would you pls check if my answer is correct?
Solve.
x^2 + 8x + 10 = 0
I used the Quadratic Formula & got x = -4(+or-)sqrt(6)
Thanks a lot,
H.H
Click here to see answer by lawdej(58)

Question 602355: Hello,
would you pls check if my answer is correct?
1)Without drawing the graph of the equations, determine how many points the parabola has in common with the x-axis and whether its vertex lies above, on, or below the x-axis.
a. y = 3x^2 � 12x + 12
b. y = �2x^2 + x + 3

My answer : a. 1 point in common; vertex on x-axis

b. 2 points in common; vertex above x-axis

Thanks a lot,
H.H
P.S.:This is my 2nd submission for this question.
Click here to see answer by Alan3354(69443)

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