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

Tutors Answer Your Questions about Graphs (FREE)

Question 63875: 5x-2y<15

Click here to see answer by praseenakos@yahoo.com(507)

Question 63938: y = |x|
Click here to see answer by funmath(2933)

Question 63902: The graph of the relation x^2 - 4y^2 + 2x - 8y - 10 = 0 is a (an)
a. point
b. straight line
c. pair of intersecting straight lines
d. circle
e. ellipse
f. hyperbola
g. parabola
h. none of these
Click here to see answer by algebrapro18(249)

Question 64003: The line that goes through the points (1,3) and (5,3) is a horizontal line. What is the distance between these points? How did you find it?
Click here to see answer by sarahschober(35)

Question 64011: In point-slope the problem is (1,2) Slope undefined and I was not sure how to find the slope with only one ordered pair.
Click here to see answer by josmiceli(19441)

Question 63793: Find the equation of the line through the points (-2, 1) and (1, -4). Write the equation in standard form with only integers.
Please explain how this problem was solved.
Thank you!
Click here to see answer by ankor@dixie-net.com(22740)

Question 64032: what is the point slope form of (0,2)(-4,2). also i need that point slope form to be turned into slope intercept form, and standard form. thanks. HOckeyk41.
Click here to see answer by funmath(2933)

Question 63807: the question is... write the equation of the line(in point-slope form) (-3,4)(5,0) and i completly forgot how to get the answer..i know how to graph it, but i dont remeber the formula...
Click here to see answer by tutorcecilia(2152)

Question 63957: PLEASE HELP...I AM STUCK ON WHAT TO DO HERE...I WOULD REALLY APPRECIATE YOUR HELP THANKS!
sketch the feasible region (quadrant 1 only) for the following system of linear inequalities
2x-6y< or equal to 0
9x-14y< or equal to 26
1x+3y< or equal to 53
-1+2y< or equal to 17
x> or equal to 0 and y > or equal to 0
SORRY I DON'T KNOW HOW TO WRITE THE EQUAL SIGN UNDER THE GREATER THAN OR LESS THAN SIGNS...I HOPE YOU UNDERSTAND WHAT I MEAN...
Click here to see answer by tutorcecilia(2152)

Question 63674: use the table of values to graph the equation y=-x+4
Click here to see answer by tutorcecilia(2152)

Question 64145: x+y=6
Click here to see answer by tutorcecilia(2152)

Question 64146: word problems using graphs
2 kinds of baseballs hard balls, soft balls. Hard balls need 1 min. stitching and 3 min. covering. soft balls need 2 min. stitching and 2 min. covering. hard balls $2 soft balls 3$ *stitching machine is available for 100 mins. the covering machine is available for 3 hours.
make a table, get constraints and graph.
Click here to see answer by stanbon(75887)

Question 64174: Write the equation of the line with x-intercept (�2, 0) and undefined slope.
Click here to see answer by stanbon(75887)

Question 64173: Sally bought three chocolate bars and a pack of gum and paid $1.75. Jake bought two chocolate bars and four packs of gum and paid $2.00. Find the cost of a chocolate bar and the cost of a pack of gum.
Click here to see answer by stanbon(75887)

Question 64177: Solve the system by graphing.
x � y = �3
x � y = 4

Click here to see answer by Earlsdon(6294)

Question 64175: Evaluate
-15 + 6
--------
3
Click here to see answer by Earlsdon(6294)

Question 64171: Determine which two equations represent parallel lines. Justify the answer.
(a) y = (5/7) x + 3
(b) y =(7/5) x + 5
(c) y = (7/5) x � 5
(d) y = �(5/7) x + 5

Click here to see answer by checkley71(8403)

Question 64169: Given f(x) = �x3 + 3x2 + x + 7, find f(�3), f(0), and f(1)
Click here to see answer by checkley71(8403)

Question 64172: Graph f(x) = �x � 2.
Click here to see answer by burkus(4)

Question 64227: Please help
1.) The graph of -4x+2y=6 crosses the x-axis when x = ?
2.) Find the center and the radius from the equation of the circle in standard form (x-5)^2+(y+3)^2
3.) The formula for the area of a triangle is A=1/2bh. If a=20 and h=b-6, then what does b= ?
4. The solution set of the equation 4/x+2-2/x-4=-6/x^2-2x-8 is ?
Thank you!!
Click here to see answer by funmath(2933)

Question 64321: I really need help, I am an adult struggling with algebra. I have a very hard time starting out the problem. This specific problem I need to find the x intercept of

y = x^3-2x^2-8x
I think this is how I would start the problem
(x^2-4) (x+2)
and then foil it but I really am stuck.... Please help me thank you.
Click here to see answer by 303795(602)

Question 64323: I need to plot the graph for
y= -x^2+8x-12
I don't have an issue plotting I just have trouble starting the problems.
I am assuming to figure out y I would start the problem like
(x-4) (x+3) But foiling the problem I still would not get 8x.... i am so lost please help me thank you.
Click here to see answer by venugopalramana(3286)

Question 64333: how would you graph thislinear equation 3x - 4y = -18
Click here to see answer by stanbon(75887)

Question 64294: Please help.
1.) What is the end behavior of the graph of y=-1.5x^4+3x^2-4x-4
2. Determine all x-intercepts of the rational function f(x)=x^2-2x/(x+4)^2
3. Find the x-coordinates of the points of intersection between two functions x^2+y^2=113 and x+y=-15
4. Give the equation of a line that passes through the point (7,4) and is perpendicular to the line whose equation is given by 4x+5y=8

Thank you!!
Click here to see answer by stanbon(75887)

Question 64364: Find the equation of the line that passes through the points (-5,-2) and (4,-3)
thank u
Click here to see answer by stanbon(75887)

Question 64451: Can you please explain how to write in slope-interceptform. Identify the slopeandy-intercept. Graph.
Click here to see answer by stanbon(75887)

Question 64443: This looks very vexing to me because I dont' understand it. Help!
Graph f(x) 3x^2-6x-1. plot at least 5 points.
Of those 5 points, state the vertex point, whether the vertex point is maximum or minimum and the equation of axis of symmetry.
Click here to see answer by Earlsdon(6294)

Question 64481: please help me with this graphing, thank you.
Find the x-intercept(s) of the following equations
23.) f(x) = 5x � 13
24.) g(x) = x2 � 25

Click here to see answer by Earlsdon(6294)

Question 64501: Please help!
Graph the solutioin to the system of inequalities y>-4/3x+8
y<=2/3x+1

Thank you!!
Click here to see answer by stanbon(75887)

Question 64563: I am working on my exam review and forgot how to graph
y=│x+2│-5

Click here to see answer by 303795(602)

Question 64643: Could someone please help me with this.
Could someone show me how to sketch a function that is odd, one that is even, and one that is neither.
Please and thank you!!!!

One more that I am having trouble with is Graph y=2x^2-4x-6. Label all x-intercepts, y-intercepts, and the vertex.
Thank you!!!!
Click here to see answer by Edwin McCravy(20054)

Question 64661: Can you show me how to graph this problem: -x-2y<2
Click here to see answer by tutorcecilia(2152)

Question 64715: decide whether the graphs of the two equations are parallel lines:
y=x+3,y=x+6
Click here to see answer by stanbon(75887)

Question 64714: decide whether the graphs of the two equations are parallel lines:
3y=x-12,6y=2x+12
Click here to see answer by stanbon(75887)

Question 64698: Find the equation of the line that passes through (3,-5) and is perpendicular to the line that passes through (7,-5) and (-2,-4)
Click here to see answer by checkley71(8403)

Question 64752: Slope:-3/4 ; y-intercept: (0, 8)
Click here to see answer by stanbon(75887)

Question 64735: WHICH RELATION IS NOT A FUNCTION
Y=X+2
Y=X^2-4
X=Y^2-4Y
X=3Y+4

Click here to see answer by stanbon(75887)

Question 64759: Can someone help. I just need to know how to get the exponential graph done on this site. I tried using the graphical expression rendering on this site but can't seem to make out the graph I need.
The graph is an exponential equation y = 2^x.
x is -2, -1, 0, 1, 2 = (this is the domain)
y is .25, .5, 1, 2, 4 = (this is the range)
Click here to see answer by stanbon(75887)

Question 64746: Find the slope and y-intercept of the line represented by the following equation.
2x - 3y = 6
Click here to see answer by 303795(602)

Question 64755: Find the slope of any line perpendicular to the line through points (0, 5) and
(-3, -4).
Click here to see answer by checkley71(8403)

Question 64874: I need help doing a prediction for a graphic problem have must predict the mathematics score for a science score of 50.
the graph is a class of students science and math scores from 1985-89-on the left side of graph is science scores from 70 down to 40 math scores on both of graph 40 thru 80...
yr-1985 math score 60 science 65
yr-1986 " " 53 " 65
yr-1987 " " 44 " 57
yr-1988 " " 61 " 61
yr-1989 " " 70 " 67
How do i predict the math score of correspondending science score of 50?
and how would i predict the science of corresponding math score of 65?
Click here to see answer by Edwin McCravy(20054)

Question 64850: Solve by completing the square :
-7x = 5 - x^2

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

Question 64944: Sketch using transformations: f(x) = -2|x+2|. Start with the basic graph and show all stages. I know that there are supposed to be four graphs, but otherwise I'm stuck. Help!
Click here to see answer by 303795(602)

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