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 125638: I need help! solve each system of equations by elimination 5x - 4y = 23 7x + 8y = 5 Thanks Click here to see answer by iluvbuilding429(41)

 Question 125672: Draw the graph of x=y^2 and discuss if it is a function or not Click here to see answer by bucky(2189)

 Question 125671: Find the minimum distance between f(x)=x^2 and y=2x-5 Click here to see answer by MathLover1(6634)

 Question 125636: I need help! solve each system of equations by elimination 5x - 4y = 23 7x + 8y = 5 Thanks Click here to see answer by benni1013(197)

 Question 125633: The length of a rectangle is 3 m more than twice its width. If the perimeter of the rectangle is 42 m, find the dimensions of the rectangle. Click here to see answer by benni1013(197)

 Question 125721: Please Please Please! help me solve this problem Sketch the graph the feasible region. x + y ≥ 7 5x + 7y ≥ 42 x≥0 y≥0 Click here to see answer by jim_thompson5910(28595)

 Question 125736: 1. Graph each of the following equation, using the intercept method. 6x + y = 6 Click here to see answer by jim_thompson5910(28595)

 Question 125737: 2. Find the slope of the line through the following pairs of points. (4, 9) and (8, 17) Click here to see answer by jim_thompson5910(28595)

 Question 125743: 3. Write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept. Slope: 5; y-intercept: (0, -2) Click here to see answer by jim_thompson5910(28595)

 Question 125744: 4. Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible. (0, -3), m = -2 Click here to see answer by jim_thompson5910(28595)

 Question 125745: 5. Solve each of the following systems by graphing. 2x – y = 8 x = 2 Click here to see answer by jim_thompson5910(28595)

 Question 125831: 6. Determine which of the ordered pairs are solutions for the given equation. (0, -2) (0, -1) (1/2 , 0) (3, -5) Click here to see answer by jim_thompson5910(28595)

 Question 125907: Find the axis of symmetry. y = –x^2 – 8x + 1 Click here to see answer by jim_thompson5910(28595)

 Question 126008: Can you help me solve this: The line tha tis parallel to x-2y+7+0 and contains (-4,0). Click here to see answer by josmiceli(9686)

 Question 126021: The length of a rectangle is 10 in. more than twice its width. If the perimeter of the rectangle is 38 in., find the width of the rectangle. Click here to see answer by checkley71(8403)

 Question 126019: Janet invested \$13,000, part at 13% and part at 6%. If the total interest at the end of the year is \$1,200, how much did she invest at each rate? Click here to see answer by marcsam823(57)

 Question 126025: Find the point of intersection of f(x)=3/2x + 12 and g(x)=-1/2x + 4 by graphing. thanks, Click here to see answer by checkley71(8403)
 Question 126025: Find the point of intersection of f(x)=3/2x + 12 and g(x)=-1/2x + 4 by graphing. thanks, Click here to see answer by josmiceli(9686)

 Question 126022: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number Click here to see answer by marcsam823(57)
 Question 126022: One number is 12 more than another. The sum of the smaller number and twice the larger number is 39. Find the larger number Click here to see answer by josmiceli(9686)

 Question 126020: Solve the system by addition or substitution. 16x – 4y = –12 y = 3 + 4x Click here to see answer by MathLover1(6634)

 Question 126088: Solve the system by graphing x + y = 3 x + y = –1 Click here to see answer by jim_thompson5910(28595)

 Question 126084: Ellen has a total of 100 coins in her jar. the coins inside the jar are either quarters or dimes. the total amount in the jar is \$22.00, how many of each type of coin is in the jar? Use Q for quarters and D for dimes. Click here to see answer by checkley71(8403)

 Question 126091: Solve the system by addition. 2x – 4y = 7 4x + 2y = 9 Click here to see answer by jim_thompson5910(28595)

 Question 126093: Solve the system by graphing. 2x + y = 4 x + y = 3 Click here to see answer by jim_thompson5910(28595)

 Question 126090: Solve the following system of linear inequalities by graphing x – 3y > 6 3x + 2y > 12 Click here to see answer by jim_thompson5910(28595)

 Question 126092: true or false: (-5, 3, -2) is a solution to the equation 2x+3y-z=1 Click here to see answer by checkley71(8403)

 Question 126107: Solve the system by graphing. x + y = 4 –x + y = 2 Click here to see answer by checkley71(8403)

 Question 126113: Solve the system by graphing. 3x + y = 6 3x – y = 0 Click here to see answer by stanbon(57374)

 Question 126108: Solve the system by addition. 5x – 4y = –5 x – 2y = –7 Click here to see answer by checkley71(8403)

 Question 126106: Solve the system by graphing. 3x + y = –1 9x + 3y = –3 Click here to see answer by jim_thompson5910(28595)
 Question 126106: Solve the system by graphing. 3x + y = –1 9x + 3y = –3 Click here to see answer by checkley71(8403)

 Question 126112: Solve the following system of linear inequalities by graphing. 3x – y < 2 x + y > 2 Click here to see answer by jim_thompson5910(28595)

 Question 126116: Graph the inequality. x – y > 2 Click here to see answer by jim_thompson5910(28595)

 Question 126120: Solve the system by graphing. x + y = 3 x + y = –1 Click here to see answer by jim_thompson5910(28595)

 Question 126123: How would I write the equation of the line has the indicated slope and contains the indicate point m=1/2 (3,5) ? What equation and could you please show the work I spent 45minutes Click here to see answer by jim_thompson5910(28595)

 Question 125396: Simplify each of the following expressions.(2x+y)+(-x-3y) i am just lost Click here to see answer by marcsam823(57)