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

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Question 87303: Determine the symmetry (relative to the x-axis, y-axis, and/or orgin) of the graph of the following function. No need to submit graph. g(x) = 3x^2.

Click here to see answer by jim_thompson5910(28598)

Question 87302: Determine the symmetry (relative to the x-axis, y-axis, and/or origin) of the graph of the function. No need for graph. f(x)= x^3 + x
Click here to see answer by jim_thompson5910(28598)

Question 87316: Graph the following equation by first solving for y. See Example 8 (p 535) in the text for reference.
2x – 3y = 12

Click here to see answer by jim_thompson5910(28598)

Question 87320:
Find the slope of the line through the following pairs of points. See Examples 1, 2, 3, 4 and 5 in the text (pp 549-553).
(-5, -3) and (-5, 2)

Click here to see answer by jim_thompson5910(28598)

Question 87315: Graph each of the following equations, using the intercept method. See Example 7 (p 534) in the text for reference.
28) 2x + 3y = 6

Click here to see answer by jim_thompson5910(28598)

Question 87323:
In Exercises 51 to 54, find the constant of variation k. See Example 9 (p 556) in the text.
52) m varies directly with n; m = 144 when n = 8.

Click here to see answer by tutorcecilia(2152)

Question 87324: In Problem 64, you’re essentially solving a problem like Example 9 (p 556). Use one ordered pair to find k, and then use that value along with the other given value to determine what its corresponding ordered pair will be.
64) Business and finance. The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising?

Click here to see answer by tutorcecilia(2152)

Question 87313: Graph the following equation ( Copy and Paste the graph into a Word document.) Please list at least two coordinates (or points) for each graph.
20) y=3/4x+2
Click here to see answer by tutorcecilia(2152)

Question 87327: In Problem 64, you’re essentially solving a problem like Example 9 (p 556). Use one ordered pair to find k, and then use that value along with the other given value to determine what its corresponding ordered pair will be.
64) Business and finance. The revenue for a sandwich shop is directly proportional to its advertising budget. When the owner spent $2000 a month on advertising, the revenue was $120,000. If the revenue is now $180,000, how much is the owner spending on advertising?

Click here to see answer by favegirl13(22)

Question 87400: Find the slope of the straight line x-2y=4.
Click here to see answer by tutorcecilia(2152)

Question 87438: solve and graph the function
f(x)=-2-5

thank you
Click here to see answer by rapaljer(4667)

Question 87452: Bob invested $ 30,00 part at 10% and part at 1%. If the total interest at the end of the year is $1,560 how much did he invest at 10%
Click here to see answer by checkley75(3666)

Question 87450: Rewrite the equation 4x -10y =11 as a function of x do I first have to rewrite the equation
Click here to see answer by scott8148(6628)

Question 87451: Graph each of the following equations, using the intercept method. See Example 7 (p 534) in the text for reference.
28) 2x + 3y = 6

Click here to see answer by checkley75(3666)

Question 87451: Graph each of the following equations, using the intercept method. See Example 7 (p 534) in the text for reference.
28) 2x + 3y = 6

Click here to see answer by rapaljer(4667)

Question 87399: Find the slope of the straight line that passes through (3,2) and (-4,8).
Click here to see answer by checkley75(3666)

Question 87477: Determine the symmetry (relative to the x-axis, y-axis, and/or origin) of the graph of the following function. You do not need to submit the graphs.
u(x)= |x|+1
Click here to see answer by rapaljer(4667)

Question 87476: Determine the symmetry (relative to the x-axis, y-axis, and/or origin) of the graph of the following function. You do not need to submit the graphs.
h(x)= x+1
Click here to see answer by rapaljer(4667)

Question 87467: For the function, y=1/x-2
a) give the y values for x=-1,0,1,2,3,4
b)using points, draw a curve (graph)
Click here to see answer by rapaljer(4667)

Question 87466: For the equation x-2^x=0 , perform the following:
a) Solve for all values of x that satisfies the equation.
Answer:
Show work in this space.
b) Graph the functions y = x and y=2^x on the same graph (by plotting points if necessary). Show the points of intersection of these two graphs.
Graph:

Points of intersection:

Click here to see answer by rapaljer(4667)

Question 87510: This is a really tough ? and i could really use some help. Using the method of “Complete the Square” put f(x) = 2x² – 10x + 14 in parabolic form, hand-graph, and identify the vertex & axis of symmetry.
Click here to see answer by stanbon(57422)

Question 87407: Graph the inequality:
y<2x-1

Click here to see answer by rapaljer(4667)

Question 87514: Rewrite the equation in standard form
Click here to see answer by checkley75(3666)

Question 87528: x-2y>4 and x>4
Click here to see answer by Edwin McCravy(8921)

Question 87526: one number is 12 more then another, the sum of the smaller number and twice the larger number is 39 find the large number x= the first number and y= the second number so is it 12 + x = y or 2x +y = 32
Click here to see answer by Nate(3500)

Question 87523: graph f(x0 = 3X = 2 ok I think we first have to solve for x
Click here to see answer by rapaljer(4667)

Question 87524: Solve by substitution 3x -y =-7 and x+ y = -9
Click here to see answer by checkley75(3666)

Question 87454: solve the linear equation by graphing x - 3y > 6 and 3x + 2y > 12
Click here to see answer by jim_thompson5910(28598)

Question 87406: Graph the inequality:
2x-3y is less then or equal to 12
Click here to see answer by jim_thompson5910(28598)

Question 87681: I need help with this last problem.
Graph the system of inequalities: y_>x and x<3
Click here to see answer by jim_thompson5910(28598)

Question 87690: Hi. My question is based on nonlinear equations.
The directions say to: "Sketch the graph of the function. Label the vertex."
The question is:
y = 3x^2
Thanks a bunch!
Click here to see answer by uma(370)

Question 87680: I am no good at graphing. Please help.
Find and graph the solution set:
a) x^3 -16x >0
b) X^2-5x_< -6
Click here to see answer by josmiceli(9697)

Question 87680: I am no good at graphing. Please help.
Find and graph the solution set:
a) x^3 -16x >0
b) X^2-5x_< -6
Click here to see answer by Edwin McCravy(8921)

Question 87700: Hi my question is based on nonlinear equations.
the directions state: "Sketch the graph of the function. Label the vertex."
My question is:
y = x^2+4x-2
Thanks.
Click here to see answer by stanbon(57422)

Question 87739: What is the easiest way to do a promblem like this. I have a hard time remembering how to do problems like this. My biggest problem is remembering how to complete the problem.
Click here to see answer by rapaljer(4667)

Question 87737: Find the equation of the parabola that has irrational roots at x=1+- square root of 5. and passes through the point (3,2).(the graph is a negative downward facing parabola)
Click here to see answer by Nate(3500)

Question 87777: write the equation of the line that passes through point (-1,11) with a slope of -5
Click here to see answer by jim_thompson5910(28598)

Question 87775: Find the slope and the y intercept (8,6)(7,7) I have no idea where to even begin
Click here to see answer by jim_thompson5910(28598)

Question 87779: Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. For Problems 16, 18 and 20, refer to Examples 3 and 4 (pp 606-607) for solutions of similar problems. Since you’re given one point already (the y-intercept), you only need to find the coordinates of one additional point on the line to be able to graph the solution!
Slope: -2; y-intercept: (0, 4)
Slope: 5; y-intercept: (0, -2)
Slope: - ; y-intercept: (0, 8)
Click here to see answer by stanbon(57422)

Question 87782: Put x = 0 you will get y = 1 . So you have a point (0,1). Put x = 1 then y = 3,then (1,3) is another pt. Continue like this u will get many set of points . Plot them as usual.Use (-)ve nos. also for x.
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87781: y = x + 1
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87780: y = 2x
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87778: which oof the following pairs are a solution for y= 5x (0,0),(-2,10),(-1,-5)(-3,9) I think 0,o -2,10 and 1 and 5
Click here to see answer by madhujiithcharu@yahoo.co.in(28)

Question 87823: I really need help on this one because I am really bad at graphing.
The problem goes like this: Solve and graph the solution set--
a) |4q-18|_>0
b) 12-|7-2m|= 9
c) |r+5|+3_<3
PLEASE HELP ME!!!!!!!!!!!!!
Click here to see answer by Edwin McCravy(8921)

Question 87879: This is my first time on this site and the problem looks easy but I am really
having the blues. Graph y=3x=4 and y=-1/3x-4 determine whether the two lines
are parallel,perpendicular ot neither.The teacher taught it this way but I am
still having a hard time with it.

Click here to see answer by Earlsdon(6290)

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