# 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 320153: Graph the inequality on a plane 2x+3y is less than or equal to 6 Thank you Click here to see answer by Fombitz(13828)

 Question 321061: Solve and graph 4x + 9≥ 1 and 2x - 22 ≥ -18 The solution is x/x≥____? Click here to see answer by jim_thompson5910(28476)

 Question 321231: i have a pattern of triangles and each side is one unit, therefore one triangle would be 3 units and it goes all the way to four triangles which makes it twelve units. On the question it says "What is the perimeter of the nth figure in this pattern?" and i have no idea how i'm suppose to find that? can you help? Click here to see answer by stanbon(57219)

 Question 321259: Solve by addition. 2x = 2 - y 3x + y = -1 Click here to see answer by Alan3354(30959)

 Question 321262: Solve by addition method. 3x - 2.5y = 7.125 2.5x - 3y = 7.3125 Click here to see answer by Alan3354(30959)

 Question 321261: Solve by addition method. 3/7x + 5/9y = 27 1/9x = 2/7y = 7 Click here to see answer by Alan3354(30959)

 Question 321258: Solve by addition. 3x + 5y = -1 x - 2y = 11 Click here to see answer by Alan3354(30959)

 Question 321257: Solve each system by addition. x - 2y = -1 -x + 5y = 4 Click here to see answer by Alan3354(30959)

 Question 321256: Solve each system by addition. x + y = 7 x - y = 9 Click here to see answer by Alan3354(30959)
 Question 321256: Solve each system by addition. x + y = 7 x - y = 9 Click here to see answer by checkley77(12569)

 Question 321255: Solve by substitution. x + 3y = 2 -x + y = 1 Click here to see answer by Alan3354(30959)

 Question 321254: Solve by substitution, Determine dependent, independent, or inconsistent. 2x - y = 4 2x - y = 3 Click here to see answer by Alan3354(30959)

 Question 321253: Solve by substitution. Determine whether independent,dependent, or inconsistent. y = x + 4 3y - 5x = 6 Click here to see answer by Alan3354(30959)

 Question 321251: Solve by substitution.Determine whether independent, dependent, or inconsistent. y = -4x - 7 y = 3x Click here to see answer by Alan3354(30959)

 Question 321250: Solve each system by substitution. Determine whether equations are independent,dependent or inconsistent. y = -3x + 19 y = 2x - 1 Click here to see answer by Alan3354(30959)

 Question 321239: What is the number in the ones place for...5.153775207x10^47 and whyy? Click here to see answer by Alan3354(30959)

 Question 321117: Graph the equations and identify the y-intercept. y=3x-5 Click here to see answer by rfer(12644)

 Question 321376: a new car is worth \$27,000, what is the value if it depreciates by 3,000 per year Click here to see answer by Alan3354(30959)

 Question 321368: I need hlep findingthe y- and x-intercepts for the equation. Then graphing the equation 4y = -28 + 7x Click here to see answer by josmiceli(9649)

 Question 321601: Solve for y in 32y+1+2=5(3y) Click here to see answer by mananth(12270)

 Question 321705: a/5 - 1/5 = -2 how do i work this problem out to get the value of a? Click here to see answer by solver91311(16868)

 Question 321892: What is the equation of a line that passes through the points (1,2) and (5,4)? Click here to see answer by Alan3354(30959)

 Question 321890: You have a jug of 40% antifreeze solution in your garage, and you just bought a new container of 100% antifreeze from the auto parts store. You need to mix up 1 gallon of 50% antifreeze for your car's radiator. How much of each of the two solutions do you need to use? Click here to see answer by Fombitz(13828)

 Question 322000: x-5y=-18 and x-7y=6 Click here to see answer by mananth(12270)

 Question 321940: please solve this problem: For what value of k will the equation below describe a circle of radius 3 units? x^2 + Y^2 + 2X - 4Y + K = 0 Click here to see answer by Fombitz(13828)

 Question 322084: Find the regions where sinx<=x. Click here to see answer by Fombitz(13828)

 Question 322081: Find the equation of the line with slope -1 that is the tangent to the curve y= 1/(x-1). (5 marks: 1 mark each for a graph, for the general equation of the line, for getting the quadratic, for solving for k, and for the solution). I would really appreciate if someone could solve it for me. Click here to see answer by Fombitz(13828)

 Question 322065: how would i simplify T^2+2t^2+4t? Click here to see answer by checkley77(12569)

 Question 322189: Find the slope of the line containing the given pair of points. If the slope is undefined, state so. (5,3) and (8, -4) Click here to see answer by Fombitz(13828)

 Question 322280: Write the equation in slope-intercept form to find the slope and the y-intercept. Then use the slope and the y-intercept to draw the line. x+y=4 Click here to see answer by solver91311(16868)

 Question 322294: x + 2y = -4 how can i graph the equation above Click here to see answer by Fombitz(13828)

 Question 322360: Find the x and y intercept 1-3y=7-2x Click here to see answer by Fombitz(13828)

 Question 322358: What is the equation of the line that passes through (-3, -1) and has a slope of 2/5 ? Put your answer in slope-intercept form. Click here to see answer by checkley77(12569)
 Question 322358: What is the equation of the line that passes through (-3, -1) and has a slope of 2/5 ? Put your answer in slope-intercept form. Click here to see answer by Fombitz(13828)

 Question 322370: Find the equation of the line parallel to the line y = -9 and passing through the midpoint of the segment joining (-3, 1) and (-2, 9). Click here to see answer by Fombitz(13828)

 Question 322500: Determine whether the ordered pair is a solution of the inequality. (-3,6) 2x+y<-4 Yes or No Click here to see answer by jim_thompson5910(28476)

 Question 322501: Soybean meal is 12% protein; cornmeal is 6% protein. How many pounds of each should be mixed together in order to get 240-lb mixture that is 11% protein? How many pounds of cornmeal? How many pounds of soybean? Click here to see answer by checkley77(12569)

 Question 322226: Find the slope of the line containing the given pair of points. If the slope is undefined, state so. (5, 3) and (8, -4) Click here to see answer by QH(50)

 Question 322780: Find the x intercept for the graph of the equation: y = x^2 + 2x - 8 Answer in an ordered pair. Thanks much!! Click here to see answer by stanbon(57219)

 Question 322797: hey trying to solve this: -0.5(0.3x-0.6)=-1.5 -0.5x0.3x=-1.5 then -0.5x-0.6=-3.0 then -1.5x(0.3)=-1.5 then I took -0.3 out from both sides was left with -1.5x=-1.8 need help am I even on the right track? Click here to see answer by jim_thompson5910(28476)
 Question 322797: hey trying to solve this: -0.5(0.3x-0.6)=-1.5 -0.5x0.3x=-1.5 then -0.5x-0.6=-3.0 then -1.5x(0.3)=-1.5 then I took -0.3 out from both sides was left with -1.5x=-1.8 need help am I even on the right track? Click here to see answer by stanbon(57219)

 Question 322837: Write a slope-intercept equation for a line that passes through (2,0) and (-2,5) Click here to see answer by jim_thompson5910(28476)

 Question 322840: find distance between P and Q P( 4,9); Q(9, 21) P(6,-3); Q(-3, 2) Click here to see answer by jim_thompson5910(28476)

 Question 322925: graph ((y-2)2)/4-((x+3)2)/16=1 Click here to see answer by Fombitz(13828)

 Question 322929: Determine the x- and y-intercepts of the given equation. Y=4X+4 Click here to see answer by jessica43(140)

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