# Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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 Algebra: Coordinate systems, graph plotting, etc Solvers Lessons Answers archive Quiz In Depth

 Question 242357: Find the slope of ( -5, -1) and 2, -3). If the slope is undefined state this. Thanks. Click here to see answer by Fombitz(13828)

 Question 242361: I have to graph -3x^2-6x-5. I found the vertex only I'm having problem finding the other points to make the parabola. The negatives are giving me the problems. Click here to see answer by Fombitz(13828)

 Question 242610: y = x - 2 Given the linear equation: - Find the y-coordinates of the given points. - Plot those points and graph the linear equation Click here to see answer by checkley77(12569)

 Question 242820: what is a 5 sided figure that has sideswith the following slopes:3,o,-5,4 and undefined Click here to see answer by Alan3354(31532)

 Question 242609: y = -2x + 5 Given the linear equation: - Find the y-coordinates of the given points. - Plot those points and graph the linear equation Click here to see answer by checkley77(12569)

 Question 243357: can you solve then graph 3x > 18? Click here to see answer by rapaljer(4667)

 Question 243345: what would the value of y be so that the line passing through (-3, y) and (4,4) it has a slope of -2. Click here to see answer by rfer(12730)

 Question 243589: write an equation of the line in slope-intercept form. (5,5); m= -3 Click here to see answer by jim_thompson5910(28715)

 Question 243654: what are the coordinates of -x+3y=12, and 4x+3y=12 if x=3 Click here to see answer by checkley77(12569)

 Question 243653: find the coordinates of -x+3y=12, and 4x+3y=12 if x=3 Click here to see answer by checkley77(12569)

 Question 244658: yz endpoints y(0,5) and z(12,3). find the length of the nearest tenth Click here to see answer by solver91311(17077)

 Question 244695: How do you find the scale factor of something? Click here to see answer by checkley77(12569)

 Question 245386: Need help please. Translate the problem into a pair of linear equations in two vaiables. Solve the equations using either elimination or substitution. State your answer for both variables. 1.The perimeter of a rectangle is six times the width. If the length were increased by 4 inches and the width were increased by 7 inches, then the perimeter would be 160 inches. What are the length and the width? 2. 30,000 people attended a ballgame at a stadium that offers two kinds of seats: general admission and reserved. The day's receipts were \$201,000. How many people paid \$13.00 for reserved seats, and how many paid \$4.00 for general admission? Click here to see answer by ankor@dixie-net.com(15746)

 Question 245385: Help please. 1. Solve using the substitution method. Show your work. If the system has no solution or an infinite number of solutions, state this. x + 7y = -2 3x + y = 34 2. Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state this. -4x + 9y = 20 -2x - 2y = 10 Click here to see answer by Fombitz(13828)

 Question 245413: I am learning grafting. Can you help me with this one 3x-4y<12 How do I plot this and I know my slope formula is y=mx+b. If the slope is minus is the slope down from L to R and if it is positive is it up from L to R Also I believe y=3/4x-3 if it is do I go 4R on the X axis and 3up on th y axis starting at the y intercept of -3 or am I messed up. ngaines@comcast.net Click here to see answer by checkley77(12569)

 Question 245931: Solve the system of equations by using substitution or elimination: 3x-y=-2 9x-3y=3 Click here to see answer by solver91311(17077)

 Question 246174: i need help on if there is a equation like.. 4x+y=3 2x=3y+4 after you solve it how do you graph it? and see if its no solution , infintely many , one solution? Click here to see answer by Alan3354(31532)

 Question 246377: Can you graph y = -3/4x - 1 and y = -3/4x + 5 Click here to see answer by SavannahN(1)

 Question 246790: A line passes thru the origin and has a slope of 1/2. Which points does the line pass thru? I answered 1/2, 1 Click here to see answer by richwmiller(9144)

 Question 246792: Mark starts a rock climb when he is 1 mile above sea level. He can climb at the rate of 1.5 miles per hour. Which of the following functions would express Mark's height above sea level over time? f(x)=1.5x f(x)=1+1.5x f(x)=2.5x Click here to see answer by solver91311(17077)

 Question 246831: Find the distance between the two points (-4, -5) and (1, -2). Click here to see answer by richwmiller(9144)

 Question 247021: A rock falls from a tower that is 400 ft high. As it is falling, How many seconds will it take for the rock to hit the ground? Click here to see answer by Jeff Gordon(65)

 Question 248642: identifiy the slope of the given by the equation y-5=-2(x+5). THEN identify one point on the line. Click here to see answer by josmiceli(9817)
 Question 248642: identifiy the slope of the given by the equation y-5=-2(x+5). THEN identify one point on the line. Click here to see answer by College Student(505)

 Question 248693: whats the equation and graph for this: m=1/2, goes through (-6,1) Click here to see answer by richwmiller(9144)

 Question 249117: Find the graph of the equation by plotting points y=-3x Click here to see answer by actuary(112)

 Question 249560: Give the equation of the line that contains (-9, 8) and (-9, -7) Click here to see answer by chosenpoint(26)

 Question 249605: Find an equation of the line containing the given pair of points. (4,1) and (12,8) What is the equation of the line? y = ? Click here to see answer by checkley77(12569)

 Question 249965: i dont understand linear equations and their graphs. i've been studying this chapter for over a week and it still hasnt made sense to me. it involves: slope, rate of change, slope intercept form, applying linear functions, standard form and intercepts, point-slope form of a line, etc...i need help and i need it fast...PLEASE! Click here to see answer by College Student(505)

 Question 250315: Graph each pair of equations. Explain why they are a family of graphs y=-x-1 y=-x+2 Click here to see answer by checkley77(12569)
 Question 250315: Graph each pair of equations. Explain why they are a family of graphs y=-x-1 y=-x+2 Click here to see answer by richwmiller(9144)

 Question 250364: how do you put coordinates on graphs using negatives i think it is really hard i need you should have something on here that will explain that. Click here to see answer by richwmiller(9144)