Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 215099: Determing if these two lines are either Parallel, intersecting or coincident Line 1 2x+3y=5 Line 2 x-3/2y=10 Show work Click here to see answer by checkley77(12569)

 Question 215077: The total weekly revenue earned at Royal Ruby Retailers is given by following function where p is the price RRR charges per ruby. Use this function to determine: First, the weekly revenue to the nearest dollar, when the price is set at \$20/ruby; Second, find the weekly revenue, to the nearest dollar, when the price is set at \$200/ruby; Third, find the price RRR should charge in order to obtain a weekly revenue of \$1200. (if you get negative answers do not assume that it is wrong!) R(p) = - 4/3 p^2 + 80p The weekly revenue when the price is set at \$20/ruby is \$. The weekly revenue when the price is set at \$200/ruby is \$. RRR should charge \$ per ruby to obtain a weekly revenue. Click here to see answer by checkley77(12569)

 Question 215133: The Metro Company sells its latest product at a unit price of \$5. Variable costs are estimated to be 30% of the total revenue, and fixed costs amount to \$7000 per month. How many units should the company sell each month in order to break even, assuming that it can sell up to 5000 units per month at the planned price? Just give the numerical answer. Do not include any words or units. Click here to see answer by stanbon(57967)

 Question 215174: a. With gas selling for \$4.90 per gallon, the cost of filling your tank varies directly with the amount of gas that you pump. Find the equation representing the cost C related to the gallons of gas G that one would need. What is the constant of variation here? b. Why is this a different constant in different areas of our country and across the world? Click here to see answer by stanbon(57967)

 Question 215168: Please help!!! Thank you!! A line passes through the point (x,y) =(-2,-3) and has a slope of -4 . Write an equation for this line. Click here to see answer by stanbon(57967)
 Question 215168: Please help!!! Thank you!! A line passes through the point (x,y) =(-2,-3) and has a slope of -4 . Write an equation for this line. Click here to see answer by drj(1380)

 Question 215197: The equation of the line that goes through the point ( 2 ,8 ) and is parallel to the line 3 x + 3 y = 4 can be written in the form y = mx+b where m is: and where b is: Please help? Thank you :) Click here to see answer by Alan3354(31519)
 Question 215197: The equation of the line that goes through the point ( 2 ,8 ) and is parallel to the line 3 x + 3 y = 4 can be written in the form y = mx+b where m is: and where b is: Please help? Thank you :) Click here to see answer by drj(1380)

 Question 215214: Write an equation in standard form with integral coefficents for the line thru the point (5,3) and parallel to the line Y= -7/6x+19 Click here to see answer by drj(1380)

 Question 215294: Is it possible for x = 3 to be in the domains of the functions. q(x)=2x square root of 2 divided by x-3 and T(x)= square root this is inside the sign 2-x. I did q(3)=2(3) with square root of 2 divided by 3-3 and For T(3)= square root that is inside the sign is 2-3. Why or why not? I think q(3)=2(3)is yes because after working it out on my calculater I came out with 3 and the second one no because it came out undefined. What are the domains of q(x) and T(x) ? (3,3),(0,0) Please explain what I did wrong if possible. Thank You Click here to see answer by Theo(3504)

 Question 215334: I do not get the following questions: y-intercept of -2.1,x-intercept of 3.5 through (1.2, 5.1), x-intercept of 3.7 Click here to see answer by Alan3354(31519)

 Question 215352: how do i write an equation in slope-intercept form for the line that satisfies each set of conditions Example The slope -2/3, passes through (6,-8) Click here to see answer by jim_thompson5910(28715)

 Question 215407: Describe the graph resulting when graphing x + 3y < 12. Give the boundary line equation: ___x + 3y = 12 ___________________ Describe the boundary line graph using x intercept, y intercept, slope, slant, and indicate the quadrants the boundary line graph will pass through. 13. Continuing to graph the inequality x + 3y < 12 from problem 12 above. Describe how the boundary line would be graphed: dashed or solid and why? Pick a test point to determine which side of the boundary line is to be shaded and why your point indicates this side. The point: _________ Why? ______________________________________________________________ 14. Finishing the graphing of the inequality from number 12, Describe the shading in each quadrant: Q1: ___________________ (none, partial, complete) Q2: ___________________ (none, partial, complete) Q3: ___________________ (none, partial, complete) Q4: ___________________ (none, partial, complete) Click here to see answer by stanbon(57967)

 Question 215442: Hello! I am not very good in math at all and would first like to thank you for taking out the time to help me! :) I would like to know the solution to this problem: 6z+5=6(z+4)-19 Click here to see answer by borja710(1)
 Question 215442: Hello! I am not very good in math at all and would first like to thank you for taking out the time to help me! :) I would like to know the solution to this problem: 6z+5=6(z+4)-19 Click here to see answer by jsmallt9(3296)

 Question 215454: Find the slope and intercepts of 3x+4y=12. Sketch a graph. Click here to see answer by drj(1380)

 Question 215467: So I have to do a problem right, they gave an example but I don't understand how they got their answer. I'm in geometry so they expect me to know it already. Here is the example problem: 3n+3=2n+6 3n=2n+3 n=3 How did they get n=3?? I don't get it. Click here to see answer by stanbon(57967)
 Question 215467: So I have to do a problem right, they gave an example but I don't understand how they got their answer. I'm in geometry so they expect me to know it already. Here is the example problem: 3n+3=2n+6 3n=2n+3 n=3 How did they get n=3?? I don't get it. Click here to see answer by vleith(2825)
 Question 215467: So I have to do a problem right, they gave an example but I don't understand how they got their answer. I'm in geometry so they expect me to know it already. Here is the example problem: 3n+3=2n+6 3n=2n+3 n=3 How did they get n=3?? I don't get it. Click here to see answer by Edwin McCravy(8999)

 Question 215483: The equation of the line that goes through the point ( 3 ,7 ) and is perpendicular to the line 3 x + 2 y = 4 can be written in the form y = mx+b where m is: and where b is: So, I got 3x + 2y = 4 2y = 4 - 3x y = (4 - 3x)/2 so m=2/3 then i plugged everything and got y - 7 = 2/3(x + 3) y - 7 = 2/3x + 2 y = 2/3x + 2 + 7 y = 2/3x + 9 Somehow its wrong, can anyone help? Thank you! Click here to see answer by Alan3354(31519)
 Question 215483: The equation of the line that goes through the point ( 3 ,7 ) and is perpendicular to the line 3 x + 2 y = 4 can be written in the form y = mx+b where m is: and where b is: So, I got 3x + 2y = 4 2y = 4 - 3x y = (4 - 3x)/2 so m=2/3 then i plugged everything and got y - 7 = 2/3(x + 3) y - 7 = 2/3x + 2 y = 2/3x + 2 + 7 y = 2/3x + 9 Somehow its wrong, can anyone help? Thank you! Click here to see answer by Earlsdon(6294)

 Question 215473: Find the measure of an angle such that the sum of the measures of its compliment and its supplement is 160 degrees. Click here to see answer by Earlsdon(6294)

 Question 215505: What is the slope of the line passing through the points ( 8, 0 ) and ( 9, 6 Click here to see answer by tutor_paul(490)

 Question 215544: Write a rule for the graph with X = 1, 2, 3, 4 and y = 2, 8, 14, 20. x being the domain and y the range Click here to see answer by Edwin McCravy(8999)

 Question 215599: Hello. I have a problem that I can graph and get the answer, but can not figure out the equation to get the answer. The question: If a lone passes through (5,2) and has slope 2/3, then what is the value of y on this line when x=8, x=11, and x=12. I know by graphing that it is (8,4),(11,6), and (12,6 3/4), but need to show work and also ensure that the estimated 6 3/4 is correct. That was just from eye balling the point on the graph were y intercepts x=12. Thank you in advance. Click here to see answer by ankor@dixie-net.com(15746)

 Question 215765: Is 7x-6(y+x)=4 a Linear Equation? If so, put it in standard form. Click here to see answer by drj(1380)
 Question 215765: Is 7x-6(y+x)=4 a Linear Equation? If so, put it in standard form. Click here to see answer by checkley77(12569)

 Question 215743: May I have some help on this problem? It's sort of difficult for me to solve it: A telephone comapny charges \$4.95 per month for long distance calls plus \$0.05 per minute. The monthly cost c of long distance calls can be described by the equation c = 0.05m + 4.95, where m is the number of minutes. Using this information, find the y-intercept of the graph of the equation. Click here to see answer by rfer(12730)

 Question 215784: Why is it true that any two points satisfying a linear equation will give you the same graph for the line represented by the equation? Click here to see answer by Alan3354(31519)

 Question 215830: What is the equation for the line slope 4.2; y-intercept (0,3.4)? Thank you for your time in helping. Click here to see answer by checkley77(12569)

 Question 215836: b.use two ordered pairs to write a prediction equation c.use your prediction equation to predict the missing value altitude(ft):0 1000 2000 3000 4000 5000 temp(c)15.0 13.0 11.0 9.1 7.1 ? Click here to see answer by Earlsdon(6294)

 Question 215943: Find the limit. If there is no limit, enter NONE. If you need to enter - or , type -INFINITY or INFINITY. Limit x to infinity 2x-1/5x^2+3x+1 Click here to see answer by rapaljer(4667)

 Question 215944: Find the limit. If there is no limit, enter NONE. If you need to enter - or , type -INFINITY or INFINITY. Limit x to infinity 2x-1/5x^2+3x+1 Click here to see answer by rapaljer(4667)

 Question 215957: Your gym membership costs \$33 per month after an initial membership fee. You paid a total of \$225 after 5 months. Write an equation that gives the total cost as a function of the length of your gym membership (in months). Find the total cost after 10 months. Click here to see answer by drj(1380)

 Question 215988: Graph the orderer-pair solutions of y=x+1 when x= -5,-3,0,-3, and 5. Click here to see answer by drj(1380)

 Question 215956: Decide whether the three points lie on the same line. If the points do lie on the same line, write an equation of the line that passes through all three points (10, 8), (14, 10), (17, 12) A. Yes, y = 1/2 x + 3 B. Yes, y = 1/2 x - 4 C. No D. Yes, y = 2/3 x + 15/14 Click here to see answer by Alan3354(31519)

 Question 216006: are a pair of verticle lines that don't intercept: consistent, equivalent or, inconsistent Click here to see answer by vleith(2825)

 Question 216019: Linear equations in one variable solve for x 50-x-(3x+2)=0 anyone can give me an amswer with a full breAK DOWN Click here to see answer by RAY100(1637)