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

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Question 229980: white an equation in slope intercept form of the line that contains the points S(7,-9) T(8,-7)
Click here to see answer by Alan3354(69443)

Question 230731: solve
2x+5<15
Click here to see answer by edjones(8007)

Question 230732: how do you we simplify expressions with integer exponents.

243^1/5
Click here to see answer by unlockmath(1688)

Question 230741: Find the slopem if it exists for 2x-10y+18=0.

Click here to see answer by unlockmath(1688)

Question 230741: Find the slopem if it exists for 2x-10y+18=0.

Click here to see answer by MathTherapy(10552)

Question 230788: -5x+2y=-10
3x-6y=-18
what would be the steps and the answer to this problem in substitution, elimination and how would it be graphed. PLEASE HELP ME!!!!!!
Click here to see answer by stanbon(75887)

Question 230778: how do i solve 3x+2y=6 using intercept
Click here to see answer by checkley77(12844)

Question 230880: y=1/2x+3/4
x is 1,2,3,4,5
Click here to see answer by user_dude2008(1862)

Question 231150: What curves are produced on a graph from the following equations:
y=x^2
y=2x
y=2^x
y=log10^x
Click here to see answer by user_dude2008(1862)

Question 231176: use the slope and y-intercept to graph y=-2/3x-3
Click here to see answer by rfer(16322)

Question 231249: find the y-intercept of a parabola whose vertex is (-1,2), which is turned downward, and whose width is the same as y=2x^2
Click here to see answer by texttutoring(324)

Question 231244: 3/2(x-5)=6
Click here to see answer by rfer(16322)

Question 231252: Rebecca wants to bake cookies and cupcakes for a bake sale. She can bake 15 cookies at a time and 12 cupcakes at a time. She needs to make at least 20 baked goods but no more than 360, and she wants to have at least three times as many cookies as cupcakes. What combination of batches of each could Rebecca make?
I need to get two system of inequality equations from this but I am not sure if I am getting the right equations. The equations I have are: x >= 3y and 120 <= x+y <=360
Click here to see answer by josmiceli(19441)

Question 231277: determine whether the graphs of each pair of equations are parallel, perpendicular, or neither. y= 5x-4 and y= -5x+4

Click here to see answer by texttutoring(324)

Question 231318: 5b = 2(3b-8)
Click here to see answer by rfer(16322)

Question 231356: Find the domain of function f defined by f(x)=3x�-12x-9
Click here to see answer by bamaboy(14)

Question 231351: 5. Translate the problem into a pair of linear equations in two vaiables. Solve the equations using either elimination or substitution. State your answer for the specified variable.
How many liters of a 40%-alcohol solution must be mixed with 10 liters of a solution that is 80% alcohol to get a solution that is 60% alcohol?
Click here to see answer by stanbon(75887)

Question 231494: Decide if the system has one solution, or an infinite number of solutions.
3x-9y=6
y=1/3x-2/3
I am unsure of how to work this to come up with the answer.

Click here to see answer by algebrapro18(249)

Question 231599: The directions say to graph each equation using x- and y- intercepts.
The problem is
My teacher didn't explain this well and now I'm confused. Your help is appreciated. Thank you.
Click here to see answer by rfer(16322)

Question 231576: what is the slope of a vertical line? ex. y=-4
Click here to see answer by rfer(16322)

Question 231576: what is the slope of a vertical line? ex. y=-4
Click here to see answer by Alan3354(69443)

Question 231679: how do you find a solution,for example x + 11< 8?
Click here to see answer by checkley77(12844)

Question 231679: how do you find a solution,for example x + 11< 8?
Click here to see answer by solver91311(24713)

Question 231679: how do you find a solution,for example x + 11< 8?
Click here to see answer by stanbon(75887)

Question 231618: solve the following problem using a sytem of two eqaution iin two variables. Hockey teams recive 2 pints for win, and 1 for tie. the wildcats once won a chapionship with 60 points. they won 9 more games than they tied. how many wins and how many ties did the wildcats win??
Click here to see answer by ankor@dixie-net.com(22740)

Question 231806: is 2x+3y=10 AND 3x-2y=8 parallel
Click here to see answer by ankor@dixie-net.com(22740)

Question 231881: Describe how you can use the equations y=5x and y=3x+100 to find when the two points of the equations will meet on the graph
Click here to see answer by ankor@dixie-net.com(22740)

Question 231987: how to plot a three dimensional graph, graph each equation
1.x+y+z=3
2. -4x+2y-4z=8
3. 6x-3y+z=6
4. (-3,-3,-3)
5. (-4,-5,1)
6. (0,0,2)
Click here to see answer by Alan3354(69443)

Question 232005: how would I graph using table y=-3x+2
Click here to see answer by rfer(16322)

Question 232108: If you know the coordinates on the graph to an unknown equation, how would you figure out that equation? for instance:
The coordinates are (-4,4) (0,6) (2,7) (3,8)
what is the equation?
Click here to see answer by Alan3354(69443)

Question 232112: sketch the graph of y=x+1
Click here to see answer by checkley77(12844)

Question 232089:
Click here to see answer by checkley77(12844)

Question 232186: i neede help i don't understand how to do it (d-5>-4)
Click here to see answer by rfer(16322)

Question 232225: find the vertex and graph of y= -x2 + 6x - 5.5
Click here to see answer by stanbon(75887)

Question 232225: find the vertex and graph of y= -x2 + 6x - 5.5
Click here to see answer by checkley77(12844)

Question 232248: Graph, y is greater than or equal to 3 of the absolute value of x-2 +1
Click here to see answer by antsmart56(3)

Question 232408: Is hard for me to graph dis stuff
Click here to see answer by rapaljer(4671)

Question 232439: Problem: y=log 4 (x) +4, the number 4 in the equation is lower than the word log, I just don't know how to type it.
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 an 1, and at x=1. Show all the work and write each step you do so I can do my other problems please and use this as an example. Use the resulting ordered pairs to plot a graph. State the equation of the line asymptotic to the graph (if any).
I need major instruction here...I am completely lost.
Click here to see answer by Alan3354(69443)

Question 232438: I have tried to get help on this problem for a while and nobody is able to help me. I have 2 different problems, but I post them seperately.
Evaluate the exponential equation for three positive values of x, three negaitve values of x, and at x=0. Show all work and please write out the steps on what you are doing so I can learn from it. Use the resulting ordered pairs to plot the graph. State the equation of theline asymptotic to the graph (if any)
Problem:(1/4)^x -3, this is worth 10 ponts out of 30, so if I don't get this I am in trouble. Please help me. If has been 16 years since I've done this and my professor isn't much help.
Click here to see answer by solver91311(24713)

Question 232605: How do I put 2.5 = 1.5x - y in slope-intercept form?
Click here to see answer by checkley77(12844)

Question 232605: How do I put 2.5 = 1.5x - y in slope-intercept form?
Click here to see answer by rfer(16322)

Question 232597: i need soooo much help ok i no how 2 solve problems like -3x+5y=-45 i can do that but what do you do when the problem is like 2y+24=4x
Click here to see answer by checkley77(12844)

Question 232763: Describe what the graph of interval [-4, 10] looks like,
I'm not sure what they want to know on this one
thankyou
bettemid920
Click here to see answer by solver91311(24713)

Question 232975: Help me to understand how to work this problem.
f(x) =2x2 at x = 1
The question: find the derivative of the function and evaluate the derivative at the given x value.
Click here to see answer by Alan3354(69443)

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