# 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 255197: solve then graph 9x>(with a line under it) 27 Click here to see answer by rfer(12731)

 Question 255194: are the lines parallel, perpendicualar or neither 4x+2y=8 2x+4y=9 Click here to see answer by dabanfield(803)

 Question 255208: solve using multiplication principle. -3/4x=-9/10 these are fractions. Click here to see answer by rfer(12731)

 Question 255183: find the domain of the function. g(x)=9/10-9x 9/10-9 is a fraction Click here to see answer by edjones(7569)

 Question 255227: 7r-6s=-22 6r+7s=54 solve. i think i need coordinates so i can graph it. if that makes any sense. Click here to see answer by Theo(3504)

 Question 255265: what is the equation of a line that contains points (4,2)and (0,-1)? Click here to see answer by Alan3354(31538)

 Question 255257: Find the equation of each line in the form y= mx+b if possible. The line through (3, 2) with undefined slope Click here to see answer by Alan3354(31538)

 Question 255186: solve the system of equations by graphing. then classify the system as consistent or inconsistent and a dependent or independent. 5x-5y=20 5y-5x=-20 Click here to see answer by Alan3354(31538)

 Question 255225: find the slope from these coordinates (5,0) (-6,-4) Click here to see answer by checkley77(12569)

 Question 255301: I need help on graphing systems of inequalities. How would you graph y>2 and y>-x+2 Click here to see answer by stanbon(57984)

 Question 255314: Flying against the wind, a plane makes a 1050km trip in 3.5 hours. On the return trip, the flight takes 30 minutes less. What is the rate of the plane in calm air? Click here to see answer by drk(1908)

 Question 255317: What's the standard form of the equation y+4=-12/7(x-1) Click here to see answer by unlockmath(1614)

 Question 255322: 18% silver alloy is made using a combination of 14% silver alloy and 24% silver alloy. How much of each alloy is used to make 20 oz of 18% silver alloy? Click here to see answer by richwmiller(9144)
 Question 255322: 18% silver alloy is made using a combination of 14% silver alloy and 24% silver alloy. How much of each alloy is used to make 20 oz of 18% silver alloy? Click here to see answer by Alan3354(31538)

 Question 255325: A sales executive earns \$800 per month plus 4% commission of the amount of sales. The executive's goal is to earn a minimum of \$4000 per month. Find the minimum sales that will enable the executive to earn \$4000 per month. Click here to see answer by rfer(12731)
 Question 255325: A sales executive earns \$800 per month plus 4% commission of the amount of sales. The executive's goal is to earn a minimum of \$4000 per month. Find the minimum sales that will enable the executive to earn \$4000 per month. Click here to see answer by richwmiller(9144)

 Question 255326: A boat traveled 45km downstream in 3 hours. The return trip against the current took 5 hours. Find the rate of the boat in calm water and the rate of the current. Click here to see answer by oberobic(2304)

 Question 255361: how do i write an equation in slope-intercept form for the lone that is perpendicular to the given lone and passes through the given point y=-3x+4;(6,-2) Click here to see answer by drk(1908)

 Question 255401: in the equation 6.5x + 1.4= 59, what is the value of x when y=5? *i dont understand the question :/ Click here to see answer by stanbon(57984)

 Question 255409: a slope of -6 and a y-intercept of -3 Click here to see answer by drk(1908)

 Question 255559: how do you solve the equation 2y=5x=12 using a graphing calculator? what buttona do you press on your calculator Click here to see answer by richwmiller(9144)

 Question 255198: graph the system of inequalities y>-1 x>5 both > has a line under it. Click here to see answer by CharlesG2(828)

 Question 255256: Find the equation of each line in the form y  mx  b if possible. The line through (3, 2) with undefined slope Click here to see answer by PRMath(124)

 Question 255609: i need help with this 0.05x - 0.03y =9 I need to find m and b the formulas are: m=-A/B B=C/B tell me if you can't solve it. Click here to see answer by drk(1908)
 Question 255609: i need help with this 0.05x - 0.03y =9 I need to find m and b the formulas are: m=-A/B B=C/B tell me if you can't solve it. Click here to see answer by stanbon(57984)

 Question 255615: A.construct a table of values for y=x^2-4x+3. use 0 B. Using your table from A, draw a table a graph of y=x^2-4x+3 in the space at the right. c. based oon your graph and table, when x^2-4x+3=0 what is x?__________________ D. what is the formula of the line of reflection?_____________ E. what are the coordinates of the turning point?_____________ please please please answer my questions. Click here to see answer by drk(1908)

 Question 255617: A. construct a table of values for y<-x^2. use -2 b. in the space at the right, draw the graph y<-x^2. c. check your graph by verifying a point in the shaded area. the graph i have is blank and just a regular graph. please if u can help please do!! :) Click here to see answer by drk(1908)

 Question 255531: How do you know what y and x mean in a problem? Example: y=x y=5x Click here to see answer by edjones(7569)

 Question 255660: my math didn't explain this to me: A line that passes through the origin and is parallel to x + y = 6. thank you, Destiny Click here to see answer by EMStelley(187)

 Question 255672: what is the equation of the numbers (1,0) and (-5,0) Click here to see answer by stanbon(57984)

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