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

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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(4667)

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(28503)

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(57242)

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(15634)

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(8882)

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(57242)

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(28503)

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(57242)

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(6287)

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(6287)

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(57242)

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(57242)

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(57242)

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(28503)

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(28503)

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(28503)

Question 82433: Solve the system of equations by graphing.
1=2x+y
x-2y=8
Click here to see answer by jim_thompson5910(28503)

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(57242)

Question 82541: graph the inequality 3x+y<=5 Please show me how you get the answer.
Click here to see answer by stanbon(57242)

Question 82566: Find the distance between the points A ( 4, -3 ) and B ( -4, 3 ).

Click here to see answer by jim_thompson5910(28503)

Question 82574: 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 a total production capacity is 5 items per week.
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.
PLEASE HELP ME WITH THIS>>>:0/
Click here to see answer by jim_thompson5910(28503)

Question 82579: Solve the following system of linear inequalities by graphing:
x-2y<4
x<4
Click here to see answer by jim_thompson5910(28503)

Question 82570: Solve the system by graphing:
2x+y=4
x+y=3
Click here to see answer by jim_thompson5910(28503)

Question 82568: Determine which two equations represent parallel lines:
(a)y=-9x+4
(b)y=9x+4
(c)y=1/9x+4
(d)y=-9+5
Click here to see answer by tutorcecilia(2152)

Question 82581: Solve the following system of linear inequalities by graphing:
x+2y>(with a line under it)3
2x-3y>(with a line under it)6
Click here to see answer by josmiceli(9657)

Question 82565:
Solve the inequality 21/ 15 - 3x < 0, and express the solution as an interval.
I got the answer ( 5, 00 )

Click here to see answer by Nate(3500)

Question 82633: Solve by Graphing:
x-y=5
x+y=3
Can someone please help me with this.
Click here to see answer by jim_thompson5910(28503)

Question 82635: Okay, I really need someone's help with this. I have asked everyone I know if they could help. And they CAN'T.
Solve the linear inequalities by graphing:
3x+4y<=12
x+3y<=6
x=>0
y=>0
PLEASE HELP!!!!
Click here to see answer by josmiceli(9657)

Question 82650: solve the system of linear inequalities by graphing. x-2y<=4, x>1
Click here to see answer by jim_thompson5910(28503)

Question 82663: Finding the slope of a line*
M=Y2 - Y1
---------
X2 - X1

A= 2,6
D= -3,-3 Please show how to get the answer.
Click here to see answer by jim_thompson5910(28503)

Question 82663: Finding the slope of a line*
M=Y2 - Y1
---------
X2 - X1

A= 2,6
D= -3,-3 Please show how to get the answer.
Click here to see answer by josmiceli(9657)

Question 82631: Please help me, graph the inequality. I have several inequalities similiar to this on my homework and if you could help me with this I will be capable of completing the rest.
x<-2
Click here to see answer by scott8148(6628)

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