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

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Question 81492: I need help...I need to determaine whether the pair lines is parallel, perpendicular, or neither.
2x-5y=-3,
2x+5y=4
Thanks!!
Click here to see answer by stanbon(75887)

Question 81522: Match the equation with a graph. I do not know this at all
A y=-2/3x+1, B y=-3/2x+1 C y=2x-1 D y=1/2x-1.
What would a graph look like that matched one of these equations.
Click here to see answer by mathdoc316(9)

Question 81520: How do you graph x^2-12x+36=0 to estimate the solutions of the equations?
Click here to see answer by dolly(163)

Question 81554: identify the axis of symmetry, create a suitable
table of values, and sketch the graph (including the axis of symmetry).
y= x^2 - 5x + 3
thank you.
Click here to see answer by tutorcecilia(2152)

Question 81595: help please if you could show me what formula to use it would be easier for me to understand how to read story problems Thank You. The directions are to write a system of inequalities representing this situation, where x is the number of scarves and y is the number of sweaters. Then graph the system of inequalities:
A home-based company produces both hand-knitted scarves and sweaters. The scarves take 2 hours of labor to produce, and the sweaters take 14 hours. The labor available is limited to 40 hours per week, and the total production capacity is 5 times per week.
Click here to see answer by ankor@dixie-net.com(22740)

Question 81626: help solve, having hard time and can you please explain:
Two angles are complementary if their sum is 90�. If the measure of the first angle is x�, and
the measure of the second angle is (2x - 3)�, find the measure of each angle.
Click here to see answer by chitra(359)

Question 81636: Convert 43/6 to a mived number.
This one I'm a bit confused, b2 � 2bc + c2 if b = 3 and c = �2.
with the 2bc, do I multiply the three numbers together, or do I do each one seperate.
combine like terms.
5w + 5x � 9w- how do i figure out what goes where. I'm trying to understand if the w and x represent something or I'm supposed to complete the equation as if they werent there.

Use the indicated property to write an expression that is equivalent to the following expression.
(7 + 11) + 2 (associative property of addition)

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

Question 81664: I can't seem to fully understand how to get through the whole process to the answer.

in the book the problem states as follows:
5y-3x=15
let y=0 5y-3x =15
5(0)-3x =15
-3x =15
x =15
let x=0 5y-3x =15
5y-3(0)=15
5y =15
y =3
let y=6 5(6)-3x =15
30-3x =15
-3x = - 15
- 15
x = -15/-3 or 5
okay, this is the example in the book. I don�t understand where the uses of the 6 as y comes in. Please help. thank you.
Click here to see answer by rapaljer(4671)

Question 81663: I can't seem to fully understand how to get through the whole process to the answer.

in the book the problem states as follows:
5y-3x=15
let y=0 5y-3x =15
5(0)-3x =15
-3x =15
x =15
let x=0 5y-3x =15
5y-3(0)=15
5y =15
y =3
let y=6 5(6)-3x =15
30-3x =15
-3x = - 15
- 15
x = -15/-3 or 5
okay, this is the example in the book. I don�t understand where the uses of the 6 as y comes in. Please help. thank you.
Click here to see answer by Edwin McCravy(20054)

Question 81637: I'm learning how to write my "results" in slope-intercept form. And I'm having a little difficulty trying to get these worked out and was wondering if I could get some assistance.
(0,5),m= -3/5
(-1,3) and (4,-2)
(2,-3) and (2,4)
I could really use the step by step process of how to do this, if possible. Thank you.
Click here to see answer by Edwin McCravy(20054)

Question 81685: How do I find three ordered pairs for this equation ? y=2x+2
Click here to see answer by rapaljer(4671)

Question 81684: How do I find three ordered pairs for this equation ? y = 2x+2
Click here to see answer by rapaljer(4671)

Question 81695: For each equation, identify the axis of symmetry, create a suitable
table of values, and sketch the graph (including the axis of symmetry).
y= -x^2+6x-2
thank you!
Click here to see answer by stanbon(75887)

Question 81712: Given f(x) = �2x � 1, find f(a � 3).
Click here to see answer by bucky(2189)

Question 81765: Would someone please explain step by step for me please, so I can see how to set up problem. Thanks
Write the equation of the line with x-intercept (12,0)and y-intercept (0,4).
Click here to see answer by rapaljer(4671)

Question 81843: find the vertex and intercepts for each parabola and graph if you could please help
h(x)=-3x^2+6x
Click here to see answer by bucky(2189)

Question 81705: Graph the quadratic equation after completing the given table of values.
y = x^2 + 2

thank you
Click here to see answer by vertciel(183)

Question 81901: Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).
y = �x^2 + 3x � 3
thank you

Click here to see answer by checkley75(3666)

Question 81984: Can someone show me how to do this?
Find the distance between (�3, �2) and (1, 4)

Click here to see answer by jim_thompson5910(35256)

Question 82037: Solve the following by graphing:
2x-y=4
2x-y=6
Click here to see answer by checkley75(3666)

Question 82099: how do you graph an enequality
Click here to see answer by stanbon(75887)

Question 82144: A small firm produces both AM and AM/FM car radios. The AM radios take 15h to produce, and the AM/FM radios take 20h. The number of production hours is limited to 300h per week. the plant's capacity is limited to a total of 18 radios per week, and existing orders require that at least 4 AM radios and at least 3 AM/FM radios be produced per week.
Write a system of inequalities representing this solution.
Then draw a graph of the feasible region given these conditions, in which x is the number of AM radios and y the number of AM/FM radios.
Click here to see answer by ankor@dixie-net.com(22740)

Question 82168: Determine the point A(x,y) so that the point A(x,y), B(0,3), C(1,0), D(7,2) will be the vertices of a parallelogram. The answer is multiple choice,
a. A(-6,1)
b. A(3,7)
c. A(5,6)
d. A(6,5)
Click here to see answer by Edwin McCravy(20054)

Question 82040: Find the values for m and b in the following system so that the solution to the system is (-3, 4)
5x+7y=b
mx+y=22
Click here to see answer by stanbon(75887)

Question 82158: This problem is not in my book, my teacher likes to make up his own questions. I can't find anything on perpendicular bisector. I think it may have something to do with midpoint but I am not for sure. I would attempt it but I don't know where to begin...
Find an equation for the perpendicular bisector of the line segment IJ for the points I(3,5) and J(7,-3)
Click here to see answer by jim_thompson5910(35256)

Question 82197: How do you find the vertex in a graph?
Click here to see answer by scott8148(6628)

Question 82253: Given f(x)=-x-4, find f(a-3)
Click here to see answer by tutorcecilia(2152)

Question 82259: I am supposed to write the equation of the line with x intercept (12,0) and y intercept (0,4). Can someone help me with this?
Click here to see answer by stanbon(75887)

Question 82258: How do I graph f(x)=-2x+2?
Click here to see answer by tutorcecilia(2152)

Question 82255: I am supposed to determine which two equations represent perpendicular lines:
(a) y=5/3x-3
(b) y=3x-5/3
(c) y=-1/3x+5/3
(d) y=1/3>5/3x
Can someone please help me with this ;0/
Click here to see answer by Earlsdon(6294)

Question 82252: Graph f(x)=3x+2
Click here to see answer by tutorcecilia(2152)

Question 82254: I am supposed to determine which two equations represent parallel lines:
(a) y=-9x+4
(b) y=9x+4
(c) y=1/9x+4
(d) y=-9+5
How do I do this? Please Help.....
Click here to see answer by Earlsdon(6294)

Question 82257: how do I graph the inequality y<1?
Click here to see answer by tutorcecilia(2152)

Question 82269: I'm trying to find out the importance of Function Notation. I can't seem to find an answer anywhere that can explain to me the definition of function notation and the purpose of it. Is there anyway you can help me with this?
Click here to see answer by stanbon(75887)

Question 82270: The following have to be graphed, and the half-plane must be determined.
y>3
These inequalitiess must be graphed.
4x+y>4
3x-4y<12
Here is a math question that has me totally confused. I have a hard time cmprehending the the math questions. If I have $30 in change consisting of dimes and quarters. How would I write an equality that shows the different amount of coins.

Click here to see answer by stanbon(75887)

Question 82347: Identify the axis of symmetry, create a suitable table of values, then sketch the graph (including the axis of symmetry).
y = �x^2 + 3x � 3
Thanks

Click here to see answer by stanbon(75887)

Question 82422: complete the ordered pairs so that each is a solution for the given equation.
3x+4y=12 - (0,),(,3/4),(0),(8/3,)
Click here to see answer by jim_thompson5910(35256)

Question 82435: Solve the system of equations using the addition method.
x+y=5
3x-4y=-20
Click here to see answer by jim_thompson5910(35256)

Question 82471: Does this system of equations 2x+y= -4 and 5x+3y= -6 have 1 solution, no solutions or infinetly many solutions?
Click here to see answer by checkley75(3666)

Question 82440: 1. solve the system by graphing. 2x+y=4, x+y=3. Show graph and identify solution.

Click here to see answer by jim_thompson5910(35256)

Question 82433: Solve the system of equations by graphing.
1=2x+y
x-2y=8
Click here to see answer by jim_thompson5910(35256)

Question 82507: Graph the quadratic equation after completing the given table of values.
y = �x^2 � 2x
Thanks.

Click here to see answer by stanbon(75887)

Question 82541: graph the inequality 3x+y<=5 Please show me how you get the answer.
Click here to see answer by stanbon(75887)

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