# 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 441784: line that passes through the point (1,-3) and is parallel to the line 7x + y = -5. Click here to see answer by sudheerb(5)

 Question 441817: find the slope of a line passing through (3,2)and (-1,-2) Click here to see answer by MathLover1(6632)

 Question 442009: Hello! I need some help trying to solve parts a and b. I've already used the quadratic formula to find the two zeros (.5 and 2) but I am having trouble moving forward. Thank you so much!! An espresso stand finds that its weekly profit is a function of the price, x, it charges per cup. If x is in dollars, the weekly profit is P(x) = -2900x^2 + 7250x - 2900 dollars. a) Approximate the maximum profit and the price per cup that produces that profit. b) Which function, P(x - 2) or P(x) - 2, gives a function that has the same maximum profit? What price per cup produces that maximum profit? Click here to see answer by stanbon(57342)

 Question 442108: Write an equation in standard form for a line passing through the pair of points. (-4, 5) and (0, -2) I think the answer might be... 9x - 2y = -4 But, Im really not sure. Any help is greatly appreciated!! Thank you in advance! Click here to see answer by josmiceli(9676)

 Question 442171: Which of the following is NOT a point on the line -6x+5y=13 A (1,19/15) B (-1/2, 2) C (-1/3) (11/5) D (6,-5) Click here to see answer by MathLover1(6632)

 Question 442188: 4.If 3 workers can paint a room in 2 hours, then approximately how long does it take 4 workers to paint the same room? Assume the time needed to paint the room is inversely proportional to the number of workers. A. 1 hour B. 3 hours C. 1.5 hours D. 2 hours Click here to see answer by jorel1380(2518)

 Question 442454: How do you graph y is greater than x AND y is less than -x I have the answer, but I don't get it. Click here to see answer by Gogonati(809)

 Question 442577: Write an equation of the line containing the given point and perpendicular to give line for: (7,-7);7x+2y=5 Click here to see answer by MathLover1(6632)
 Question 442577: Write an equation of the line containing the given point and perpendicular to give line for: (7,-7);7x+2y=5 Click here to see answer by richard1234(5390)

 Question 442192: 2.Which of the following functions is most likely to have the smallest value for y if x is large? (Assume k is positive.) A. a direct variation function with a small value for k B. a direct variation function with a large value for k C. an inverse variation function with a small value for k D. an inverse variation function with a large value for k Click here to see answer by robertb(4012)

 Question 442728: using the padowan.dk/graph sales=0.15x number of e reader sold -28 value are given in thousands the cost of making an ereader is 150[0.15x1000]with 28000[28*1000] in constant charges and based on the graph and sale equation provided,dicuss the relation between sales and numbers sold consider the slope and y intercept Click here to see answer by stanbon(57342)

 Question 442775: Graph the function f(x)= -2x^2 + 4x + 3 Click here to see answer by ewatrrr(10682)

 Question 442990: I can not figure this one out.... -y= 4X-5 What is the slope of this line? Click here to see answer by Alan3354(30993)

 Question 443040: Determine an equation for the vertical line passing through the point (5,2) Click here to see answer by shree840(260)

 Question 443061: Graph the equations on separate graphs by completing the tables and plotting the points. You may use Excel or another web-based graphing utility. Complete the table using the given values of x and the equation y = -2x + 7. Click here to see answer by swincher4391(726)

 Question 443083: Solve the system by the graphing method x+y=4 y=x+2 Click here to see answer by swincher4391(726)

 Question 443074: Determin whether the graphs of the two lines are parallel. y+3=9x 6x-y=-3 Are the graphs of the given equations parallel? No or Yes Click here to see answer by mananth(12270)

 Question 443093: Find the eqaution of the parabola given the three points: (0,1),(2,1),(-1,4) Click here to see answer by swincher4391(726)

 Question 443092: Find the eqaution of the parabola given the three points: (1,0),(0,-4),(2,6) Click here to see answer by swincher4391(726)

 Question 443106: what equation would i use to correctly describe a y-intercep of (0,6) Click here to see answer by swincher4391(726)

 Question 443162: I am frying my brain trying to solve this algebra questions. Most having to do with graphs. Can anyone help me with this? Question 1: Solve, then graph: a + 2 <-13 (the "<" should be underlined). Thank you! Click here to see answer by MathLover1(6632)

 Question 443193: Given f(x)= -3x+2 and g(x)= -2x+9 find (gof)(x) Can anyone help me with this problem? TY in advance. Click here to see answer by swincher4391(726)

 Question 443468: Find the x intercept and y intercepts, slope and graph:3x-4y=12 Click here to see answer by rfer(12657)

 Question 443707: Graph each inequality, and write the solution set using both set-builder notation and interval notation for problem: y<6 Click here to see answer by MathLover1(6632)

 Question 443744: Hello. I need a little bit of help...or shall I say, a lot of help with this Algebra problem: An equation and two ordered pairs are given. Show that each pair is a solution of the equation. Then graph the two pairs to determine another solution. Answers may vary. 2y + x = 5; (−1, 3), (7, −1) Thank you! Click here to see answer by ewatrrr(10682)

 Question 443745: find the vertex, the line of symmetry, the maximum or minimum value of the quatratic function, and graph the functio f(x)=+-2x^2+2x+8 Find the x-coordinate of the vertex is___ Find the y-coordinate of the vertex is__ The equation of the line of symmetry is x=____ The maximum/minimum of f(x)is ___ The value , f(1/2)=17/2 is? Click here to see answer by ewatrrr(10682)