# Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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 Algebra: Linear Equations, Graphs, Slope Solvers Lessons Answers archive Quiz In Depth

 Question 397345: I am trying to decide wether each pair of lines is Perpendicular, parallel, or neither. 2x-y=5, 2x+y=3 I have worked out: 2x-y=5 2x-y-5=5-5 2x-y-5=0 2x-y+y-5=0+y 2x-5=y I plugged 2 in for x 2(2)-5=y 4-5=y -1=y 2x+y=3 2x+3=y Plugged in 2 for x again 2(2)+3=y 4+3=y 7=y In my book it says that the answer is neither Perpendicular or parallel but I don't understand why that is. I thought if you were solving for y the coefficient of x is the slope so wouldn't the slope on both be 2? Click here to see answer by ewatrrr(10682)

 Question 397360: If the line y=A+B(x-3) is perpendicular to the line y=2x and it contains the point (5,15) , what are the values of A and B? Click here to see answer by ewatrrr(10682)
 Question 397360: If the line y=A+B(x-3) is perpendicular to the line y=2x and it contains the point (5,15) , what are the values of A and B? Click here to see answer by lwsshak3(6481)

 Question 397391: The Norman window with dimensions as shown is a rectangle topped by a semicircle. If the area of the window is 68.2 square feet, find its height h. the drawing looks like a square with "6ft" at the bottom, at the top of the square is a half circle or dome divided like you would a piece of pie. Then next to the picture they have an arrow with "h ft" in the middle of the line going up and down from the top of the dome to the bottom of the square. Please help me set up an equation & solve problem. Click here to see answer by ankor@dixie-net.com(15645)

 Question 397585: I'm having difficulty understanding how to write the equation of a line. y= mx+ b m=-4\5 b=12 Click here to see answer by solver91311(16872)

 Question 397627: What is the equation of a line that is perpendicular to y=-4x-2 and passes through the point (-8,3)? Click here to see answer by Fombitz(13828)
 Question 397627: What is the equation of a line that is perpendicular to y=-4x-2 and passes through the point (-8,3)? Click here to see answer by robertb(4012)

 Question 397599: how do i find my equation of a line parallel to 2x-4y=20 that passes through (8,-3) Click here to see answer by Fombitz(13828)

 Question 397821: write a equation of a line through the given points Click here to see answer by stanbon(57278)

 Question 397840: Could you assist me with finding the slope and the y-intercept of the following: 6-1/5y=4x Click here to see answer by stanbon(57278)

 Question 397847: Find the slope and the y-intercept of the line. Write fractional answers in lowest terms. 5y+3x+2=19+3x Click here to see answer by ewatrrr(10682)

 Question 397852: what is the equation of the line that passes through the point (5,11) and is parallel to y= 4/5x+1 ? Click here to see answer by scott8148(6628)

 Question 397753: Hello! I have a few questions here which all relate to one another and I am having equal difficulty in completing. I will appreciate any and all answers. Problem: Given A(1, 5); B(6, 2); C(-6, -4); and D(-3, 1) answer the following. 1)Find the slope of line AB. 2)Find the length of line CD. (Round to nearest tenth's place.) 3)Find the midpoint of line BD. (Express in terms of fractions.) 4)Find (a) the slope and (b) the y-intercept of the line with the equation 4x+2y=6. Thank you so much!!!! I eagerly await your solution. Thanks in advance for all of your help! :D Click here to see answer by ankor@dixie-net.com(15645)

 Question 397909: a line contains the point (5-2) and (-20,-12). what is the following points is on the same line? Click here to see answer by Alan3354(30993)

 Question 397984: what an equation of the line contain the given point and perpendicular to the given line (8,7) 4x+5=9 Click here to see answer by Alan3354(30993)

 Question 397993: Find the equation of the line through each given pair of points. Write the answer in standard form using only integers. (-1, -3), (2, -1) Click here to see answer by Alan3354(30993)

 Question 398022: how do you this problem so can graph it 2x+y=1 Click here to see answer by scott8148(6628)
 Question 398022: how do you this problem so can graph it 2x+y=1 Click here to see answer by mananth(12270)

 Question 398034: A semiconductor manufacturer seeks to maximize its profits. Testing indicates that they can produce 100,000 chips per week at a cost of \$40 per chip, and sell them for \$65 per chip. They also find that they can produce 125,000 chips per week at a cost of \$35 per chip, and sell them for \$63 per chip. How much profit can they expect to earn if they produce 130,000 chips per week? Click here to see answer by stanbon(57278)

 Question 398211: Consider the line that passes through the points (2, 3) and (6, 11). Below are two different equations. Identify the true statement concerning both equations. #1 y -11 = 2(x - 6) #2 y - 3 = 2(x - 2) A Only equation #1 represents the line that passes through the two given points. B Only equation #2 represents the line that passes through the two given points. C Both equation #1 and equation #2 represent the line that passes through the two given points. D Neither equation #1 nor equation #2 represents the line that passes through the two given points. Click here to see answer by ewatrrr(10682)

 Question 398213: Find the slope and y-intercept of the equation of the like. Sketch the line. y=x-10 Click here to see answer by ewatrrr(10682)

 Question 398240: Find the equation of the line through (2,a) and (9,b). Click here to see answer by stanbon(57278)

 Question 398238: Find the equation of the line through (6,-3) which meets the x axis at x=3. Enter your solution in the form y=mx+b. Click here to see answer by nerdybill(6951)

 Question 398262: this is a hard question to put in words, but i have a math equation that looks like this -2y=2-x i set it up like this y=mx+b so -2y=2-x and i divide the whole thing by two i then get y=1 but i dont know how to divide the x and to graph it after i divide by two i use x as zero and y as what my assingment calls for two points of each and im not sure if i drop the run over rise and use the next number and just add or subtract what ever the equation asks for. i need to get a slope on the graph please help me Click here to see answer by ankor@dixie-net.com(15645)

 Question 398298: find the values for x and y using the given slope and points. m=1/4 and ( 0,0), (x,4), (3,y) Click here to see answer by robertb(4012)

 Question 398405: The graphs of the two lines 4x= 3y + 23 and 4y + 3x= -19 are? A. do not intersect B. intersect at (-2,5) C. are Identical D. are perpendicular Click here to see answer by Alan3354(30993)

 Question 398407: what is the slope of a line with the points (-2,-1),(5,13) Click here to see answer by ewatrrr(10682)

 Question 398454: 1. write an equation of each line in slope-intercept form slope-5; y-inercept 1/2 2.Write an equation of each line in standard form: with slope -3, through (0,-5) Click here to see answer by ewatrrr(10682)

 Question 398605: How am I supposed to work out this equatin? I hve tried numeros times, but I just don't understnd it. -20-(-50)=x/9 Click here to see answer by Alan3354(30993)

 Question 291731: What is the eqaution of the parabola that moves the parent graph of: y=x-2 down ten units? Click here to see answer by babyb_(6)

 Question 398629: find an equation of the line that has a y-intercept of 2 that is parallel to the graph of the line 4x+2y=8 Click here to see answer by Edwin McCravy(8889)

 Question 398673: write an equation of a line that is parallel to the line 3y-6x=1 and that passes through point (-1,4) Click here to see answer by MathLover1(6625)

 Question 398681: Solve the system by the substitution method. -2x + y = -2 x - 4y = 9 Click here to see answer by jim_thompson5910(28536)