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

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 Algebra: Graphs, graphing equations and inequalities Solvers Lessons Answers archive Quiz In Depth

 Question 136578: Find the slope of any line perpendicular to the line through points (6, 3) and (7, 7). Click here to see answer by vleith(2825)

 Question 136579: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number.Define variables, set up equation(s) and solve. Click here to see answer by vleith(2825)

 Question 136598: this is how the question looks directly from my Algebra 1 workbook. I couldn't even begin to try this section, I'm just really confused by the graphing: Solve the equation graphically. Check the solutions algebraically x(squared) + x = 12 Click here to see answer by solver91311(16868)

 Question 136611: find the x-intercept(s) and he coordinates of the vertex for the parabola y=x^2-4x-12. Click here to see answer by solver91311(16868)

 Question 136591: This is a question from my Economics Course. No one in my group can figure it out. We are supposed to plot a Supply, Price, and Quantity graph based off the answer/s we get from the algebraic equation given. Here are the questions, exactly as they appear in the book: Assume that the demand and supply equations for bushels of wheat are a follows: Qd = 15 - (3*P) Qs = 1 + (4*P) Also assume that, in equilibrium, Qd = Qs. Solve for equilibrium price by setting quantity demanded equal to quantity supplied. What is the disequilibrium condition at prices of \$1.50 and \$2.50? I appreciate any help you can give us. Thank you! Click here to see answer by scott8148(6628)

 Question 136599: directly from the work book: Sketch the graph of the function. Label the vertex. y = x(squared) + 2x + 1 Click here to see answer by checkley77(12569)

 Question 136851: i'm having a hard time trying to figure out this problem. it says: graph 2x + 4y < 8 i'm sure i could figure out how to graph it, but i don't know how to solve the problem first. if anyone could help...thank you very much in advance!! Click here to see answer by checkley77(12569)

 Question 136844: i'm having a hard time understanding "y" and "x" intercepts and I still don't understand if after looking through classroom examples, and my book. here is one of the problems: find the "y" and "x" intercepts: -2x - 8y = 16 if anyone can help, i'd really appreciate it! thanks in advance! Click here to see answer by checkley77(12569)

 Question 137060: I am not understanding how it is possible for an inequality to consist of one number. I know inequalities are numerous so how can it only be one number? Click here to see answer by stanbon(57203)

 Question 137041: How do I find the equation of the line that contains the points (2,3) and (4,7)? Click here to see answer by checkley77(12569)

 Question 137244: Could you please determine whether the abosolute value inequality is equivalent to the inequality following it? |x-3|>0,x-3>0 Also could you please give details? Thank you very much. Click here to see answer by oscargut(891)

 Question 137344: Find the equations for the horizontal and vertical asymptotes of the following. Type none if the function does not have an asymptote. a) f(x)=2x+1/x-4 Answer: Horizontal: Vertical: b) g(x)=3x/x^2+4 Click here to see answer by stanbon(57203)

 Question 137346: last season a major league baseball player got 80 hits in 200 times at bat. if the player expects to bat 500 times in the entire season with the same ratio of hits to at bats how many hits can the player expect to have? Click here to see answer by Fombitz(13828)

 Question 137695: my question is find the equation of a line passing through the point (5,-3) that is perpendicular to the line 3x + 4y=24. use slope intercept formula. thanks a lot Click here to see answer by dolly(163)

 Question 137857: y is less than or equal to 1/4x-1 please explain and show how i can solve this problem. thanks! Click here to see answer by vleith(2825)

 Question 137983: find the x-intercept and the y-intercept of the graph of the equation y-2x=3 Click here to see answer by checkley77(12569)

 Question 137991: find the x-intercept and the y-intercept of the graph of the equation 3y=-6x+3 is it like this 3y=-6x+3 trying to find x 3(0)=-6x+3 x=-3 now y 3y=-6(0)+3 y=3 Click here to see answer by stanbon(57203)
 Question 137991: find the x-intercept and the y-intercept of the graph of the equation 3y=-6x+3 is it like this 3y=-6x+3 trying to find x 3(0)=-6x+3 x=-3 now y 3y=-6(0)+3 y=3 Click here to see answer by solver91311(16868)

 Question 138006: find the area of a fenced yard with a lenght of 18 yards and width of 10yards 180 Click here to see answer by valpal314(2)

 Question 138046: Ehhhhh i dont like graphs, but most people do. everytime i plug in some numbers and then graph it, it ends up to be a straight line instead of a U shape: Parabola Exploring Quadratic Graphs: 8. y = -1/3x^2 14. f(x) = x^2 + 2 18. y = -2x^2 + 2 please and thank you! you dont have to do all three. Click here to see answer by stanbon(57203)

 Question 138051: How do I solve: Find the equation of the line that contains the points whose coordinates are (9,-3) and has a slope of -1/3. I lost my x somewhere y-y1=m(x-x1) Y-(3)=-1/3(x-9) y-(-3)+ -1/3x(9) -3= -3 Where did I go wrong? Click here to see answer by stanbon(57203)

 Question 138204: the variables x and y vary directly.use the given values to write an equation that relates x and y x=5,y=40 i have no clue how to do it Click here to see answer by Earlsdon(6287)

 Question 138164: Solve the system by graphing. 2x + y = -4 x-y = 1 Click here to see answer by checkley77(12569)

 Question 138267: Graph number ranges help! please!? hi, i need help on what the number ranges for my graph should be. like should it be going by 0.5 or 5, or even 10. it's really hard, because all the datas of this graph isn't in the same unit/number place. please help me! i need help ASAP. this data is for a star classification project. thank youuuu the numbers of this data are: 0.01 2,000 6 20,000 1 20 0.4 12 79,000 52,000 1 40 0.01 10,000 2 112,000 1.09 2.28 Click here to see answer by solver91311(16868)

 Question 138299: Sorry but i don't have a clue where to begin.graph each system of equations on the same set of axes.name the point of intersection.y=3x+1 y=x-1 thanx Click here to see answer by stanbon(57203)

 Question 138485: Ok..i dont know if anyone can help me with these, but please..i need help. Solve the systemof equations by graphing. Then classify the system as consistent or inconsistent and the equations as dependent or independent. x + y = 13 x - y =3 What is the solution of the system of equations? (Type an ordered pair. type N if there is no solution. Type R if the solution is all real numbers) Is the system consistent or inconsistent Are the equations dependent or independent. Click here to see answer by stanbon(57203)

 Question 138609: 9v=15..6/1 is the answer i came up with...i wanted to know if i was correct Click here to see answer by vleith(2825)

 Question 138648: Find if the function is even, odd or neither. f(x)=x^2-6x+9 Click here to see answer by jim_thompson5910(28476)

 Question 138649: Find if the function is even, odd or neither. f(x)=x^3+4x Click here to see answer by jim_thompson5910(28476)

 Question 138650: Find if the function is even, odd or neither. f(x)=x^4-1 Click here to see answer by jim_thompson5910(28476)

 Question 138653: Graph and find x-intercepts, y-intercepts and the vertex Click here to see answer by jim_thompson5910(28476)

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