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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 199194: for line5x-4y=12, the y intercept is
Click here to see answer by nerdybill(7384)

Question 199193: for line y=-5x+2 the slope is
Click here to see answer by Alan3354(69443)

Question 199205: Students of a class are made to stand in rows.If four students are extra in a row there would be two rows less.If four students are less in a row there would be four more rows.Find the number of students in the class?
Click here to see answer by ankor@dixie-net.com(22740)

Question 199240: what is the slope of the linear equation
y=1/4x+11
4x-2y+8
Click here to see answer by checkley77(12844)

Question 199276: Find the slope-intercept equation of the line that has the characteristics
Slope 9.8 and the intercept (0,-7)
Click here to see answer by rfer(16322)

Question 199216: Write the equation of the line passing thru points (-7,2) and (5,8) in slope intercept form. what I have so far: m=8-2/5-(-7)= 6/-12 = m= 1/2
Click here to see answer by checkley77(12844)

Question 199326: Write the equation of the line passing through the points (-7, 2) and (5, 8) in slope intercept form. Please show work.
I know it's using m=y^2-y^1/x^2-x^1 and then point slope y-y^1=m(x-x^1) -- but the fraction is throwing me off.
Please help.
Thank you.
Click here to see answer by checkley77(12844)

Question 199536: Find the equation of a line through the point
(2,-1) with a slope 4
Click here to see answer by jim_thompson5910(35256)

Question 199528: I need to find the slope of a roof (I-Beam)
From floor to I-Beam at front of building the height is 174 inches
From floor to I-Beam at back of building the height is 120 inches.
The beam is a distance of 1,800 inches.
Help!
Click here to see answer by rfer(16322)

Question 199585: Daniela and Jack are hiking a steady incline. They use their GPS
device to determine their elevation every 15 minutes. At 15 minutes
and 30 minutes they were at elevations of 10,300 feet and 10,900 feet, respectively.
a. Write an equation expressing their elevation in relation to time.
b. Based on the formula you found above, what is their elevation
after one hour?
Click here to see answer by rfer(16322)

Question 199595: hot to find the equation of a line with to points given (0,5) and (0,0)?
Click here to see answer by vleith(2983)

Question 199610: 3x-y=-3
2x+y=-7
i am trying to figure out how to find the x,y,xy corrdinates so i can graph the equation to find out this problem has one solution, no solution, or infininate solutions
Click here to see answer by jim_thompson5910(35256)

Question 199586: The problem was a graph with a line drawn. How do i make and equation in slope-intercept form? Can you show me an example.
Click here to see answer by jerrybassmasta(14)

Question 199753: Which of the following equations represents a line I that goes through (-1,-3) and has a slope of 4?
A) y=4x-3
B) y=4x+1
C) y=4x-1
D) y=4x+3
Click here to see answer by tutor_paul(519)

Question 199769: A circular path around a lake has a diameter of 1,500 feet (ft). Pranotti jogs around the path 3 times for her morning run. How far does she run? Use 3.14 for and round your answer to the nearest foot.
Click here to see answer by RAY100(1637)

Question 199752: Line I goes through the point (5,-2) and is perpendicular to the line through (-2,1) abd (-4,-2). Find the slope of I. Choose from:
A) - 2/3
B) - 3/2
C) 7/3
D) 0
Click here to see answer by rfer(16322)

Question 199757: Which of the following equations represents a line I that goes through (12,-9) and has a slope of - 1/3? Choose from:
A) y= - 1/3 - 5/3
B) y= - 1/3 x
C) y= - 1/3 x - 5
D) y= - 1/3 x + 5
Click here to see answer by Alan3354(69443)

Question 199790: What is the y-intercept of 3x - 2y = 0
Click here to see answer by RAY100(1637)

Question 199963: Write the equation of the line perpendicular to 9x + 2y = 18 and passes through the point (1, 4).
Click here to see answer by jim_thompson5910(35256)

Question 200059: 5x+6y=18
Click here to see answer by Alan3354(69443)

Question 200119: -x+4y=-11
2x+4y=-2

Click here to see answer by checkley77(12844)

Question 200203:
Find the slope of a line perpendicular to the line
y=x

Use the slope-intercept form of a linear equation to write the equation of each line with the given slope and y-intercept.

slope -3; y-intercept (0, -1/5)

write the equation of the line passing through the given points. write the equation in standard form Ax+By=C

(8,-3) AND (4,-8)

Write an equation of each line. Write the equation in the form x=a y=b or y =mx+b

Through (-2,-3): perpendicular to 3x+2y =5

Find the equation of each line. Write the equation in standard form unless indicated otherwise.

Through (3,5) perpendicular to the line 2x-y=8

Solve each system by graphing.
-x +3y =6
3x - 9y = 9 These two are togther supposed to have a bracket around them as a whole.

Use the substitution method to slove each system of equation.
x= 3y -1
2x - 6y = -2
These two are togther supposed to have a bracket around them as a whole.

Solve each sytem of equation

1/2x - 1/3y = -3 These two are togther supposed to have a bracket around them as a whole
1/8x + 1/6y =0

Click here to see answer by Alan3354(69443)

Question 200202: Determine whether each pair of lines is a parallel, perpendicular, or neither.
Line 1 goes through (-4,10) and (2,-3)
Line 2 goes through (-3,8) and (2,-5)
Click here to see answer by RAY100(1637)

Question 200311: A student has earned scores of 87, 81, and 88 on the first 3 of 4 tests. If the student wants an average (arithmetic mean) of exactly 87, what score must she earn on the fourth test?
Click here to see answer by RAY100(1637)

Question 200386: How would i find a non linear equation for an in and out table of x=4 and y=2?
Click here to see answer by MathKid2009(1)

Question 200442: i need help on finding the slope
Click here to see answer by Alan3354(69443)

Question 200448: What is the equation of the line that contains the points with (x,y)coordinates (-3,7)and(5,-1)?
Click here to see answer by jim_thompson5910(35256)

Question 200461: whats the equation for each line with the given slope and point of (2,7),m=5/6.
Click here to see answer by ankor@dixie-net.com(22740)

Question 200472: what is the solution for this problem?
y=5/6x+1
i need the answer as points so i can plot them in a graph.
Click here to see answer by jim_thompson5910(35256)

Question 200484: Find the slope of the line 4x-5y=2
Click here to see answer by nerdybill(7384)

Question 200516: AHHH!! i dont understand these problems in the class i am in and I have to pass it to get the credit.. any problem is helpfull, like 2x+3y=3
3x+3y=4
Click here to see answer by rfer(16322)

Question 200611: Find the slope of the line passing through the pair of points (1/5,1) and 1/5,4)? My answer was undefined...
Click here to see answer by RAY100(1637)

Question 200611: Find the slope of the line passing through the pair of points (1/5,1) and 1/5,4)? My answer was undefined...
Click here to see answer by solver91311(24713)

Question 200615: Write the equation of a line passing through (7,12) and parallel to y=2.
Click here to see answer by solver91311(24713)

Question 200625: y=x+4
Click here to see answer by jim_thompson5910(35256)

Question 200724: I need to solve this linear equation, but i just do not know how. I need the proper steps to solving this problem. Please help!!!
3x-2.5y=7.125
2.5x-3y=7.3125
Click here to see answer by tutorcecilia(2152)

Question 200757: What is the equation of the line that passes through the points (4,0) and (1,-2)?
Click here to see answer by ankor@dixie-net.com(22740)

Question 200757: What is the equation of the line that passes through the points (4,0) and (1,-2)?
Click here to see answer by rfer(16322)

Question 200776: Write an equation of the line that passes through the points (-5,3) and (5,-3).
Click here to see answer by jim_thompson5910(35256)

Question 200776: Write an equation of the line that passes through the points (-5,3) and (5,-3).
Click here to see answer by checkley77(12844)

Question 200777: Find the point-slope equation of a line that has a slope of 3/4 and passes through the point(-6,-2). Then, solve for y.
Click here to see answer by stanbon(75887)

Question 200777: Find the point-slope equation of a line that has a slope of 3/4 and passes through the point(-6,-2). Then, solve for y.
Click here to see answer by rfer(16322)

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