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

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Question 332855: Write the equation of the line that is perpendicular to the line 3x - 2y = 6 and passes through the point (-1,2).

Click here to see answer by checkley77(12844)

Question 332949: how would you find the slope
(3,0) and (-3,4)
Click here to see answer by rfer(16322)

Question 332974: 7/2x-1=2x+5
Click here to see answer by benazir.sj@gmail.com(109)

Question 333020: what is the slope of 5/x + 3/y=4?
Click here to see answer by Alan3354(69443)

Question 333021: what is the slope perpendicular to 5/x + 3/y=4?
Click here to see answer by Alan3354(69443)

Question 333041: I need help finding the discriminant of this problem:
-10x2 - 6x + 5 = 0
Click here to see answer by nyc_function(2741)

Question 333159: Without graphing determine whether the following pairs of lines are (a) parallel (b) perpendicular, or (c) neither parallel nor perpendicular 5x-6y=19
6x+5y=-30
Click here to see answer by Alan3354(69443)

Question 333175: Given the function defined by t(x)=x^3-3x^2+2x-3 find the following t(-1)
Click here to see answer by solver91311(24713)

Question 333178: Find the solution to each system by the substitution method.
10x+3y=8
2x+y=2
Click here to see answer by benazir.sj@gmail.com(109)

Question 333183: Find the solution to each system by the addition (elimination) method.
4s-5t=18
6s+10t=-8
Click here to see answer by checkley77(12844)

Question 333177: Find the solution to each system by the substitution method.
2x-5y=-1
x-3y=-3
Click here to see answer by checkley77(12844)

Question 333171: given the function defined by g(x)=2x-5 find the following g(-3)
Click here to see answer by checkley77(12844)

Question 333156: Find an equation of the line satisfying the conditions given. Express your answer in standard form. Parallel to 3x-y=-5 and passing through (-1,0)
Click here to see answer by checkley77(12844)

Question 333155: Find an equation of the line that passes through the given point and has the given slope. Express your answer in slope-intercept form. (8,0),m=-3
Click here to see answer by checkley77(12844)

Question 333153: Write an equation of the line with the given slope and the given y-intercept. Leave the answers in slope intercept form. Slope -2/3, y-intercept (0,5)
Click here to see answer by checkley77(12844)

Question 333148: A line k passes through the points (4,2) and (-4,4). A second line h passes through the points (-8,1) and (8,-3). Is line k parallel to line h? Why or Why not?
Click here to see answer by checkley77(12844)

Question 333146: Find the slope of a line perpendicular to the line that passes through the following points (3,9) and (7,15)
Click here to see answer by checkley77(12844)

Question 333143: Find the slope of a line parallel to the line that passes through the following points (4,0) and (3.8,2)
Click here to see answer by checkley77(12844)

Question 333139: Find the slope if possible, of the line passing through each pair of points (2,-1) and (6,3)
Click here to see answer by checkley77(12844)

Question 333321: This is a silly question, but I'm in doubt for trying to resolve (6v+3)(6v+3). I found it 6v^2+36v+9. Can I simplify this dividing by 3, to 2v^2+12v+3?
Click here to see answer by mananth(16946)

Question 333326: If the problems asks to rewrite the equation without parentheses and simplify it, the equation (6v+3)^2, should I answer 4v^2+4v+1 or 36v^2+36v+9?
Click here to see answer by mananth(16946)

Question 333360: y=a+bx; .72=-.19+1.218*x How do I solve for x?
Click here to see answer by rfer(16322)

Question 333449: Convert the following two equations to slope-intercept form:

a) 1/3x + 3 = 3/4y
b) 3x -4y - 20 = 0

Click here to see answer by nyc_function(2741)

Question 333496: Find the slope of the line containing each given pair of points. If the slope is undefined, state this.
(-1,4) and (5,-8)

I have know idea how to do this problem, could someone please help me.
Thank you in advance
Click here to see answer by stanbon(75887)

Question 333491: I am taking college algebra, we are in the 1st week of class and have not covered how to graph Y=1+150X. I am taking an online economics class and I am working on my homework. My graphing calculator is in the car but I don't know how to use it yet. Please help!
Click here to see answer by Alan3354(69443)

Question 333418: How do I solve this? factor u^2-81v^2.
Click here to see answer by scott8148(6628)

Question 333505: application of linear equations
Andrew invested a total of Php18,000, part at 5% and part at 9%. If his income for one year from the 9% investment was Php100 less than his income from the 5% investment, how much was invested at each rate?
Click here to see answer by mananth(16946)

Question 333454: 2x-5y=40 . what is the y intercept
Click here to see answer by AAfter.Com(18)

Question 333613: Solve and graph the solution set: -2+3(x-3)>=2-(4+x)
Thank you for your time!
Click here to see answer by stanbon(75887)

Question 333701: Find the choice below which gives a first step in solving the given system of equations by the addition method.
2x - 3y = 7
x - 4y = 2

Click here to see answer by Edwin McCravy(20055)

Question 333702: If the system of equations given below is solved using the substitution method, what is the equation that results from solving the second equation for y, and substituting into the first equation?
3x - 2y = 7
x - y = 5

Click here to see answer by vleith(2983)

Question 333696: Given the function f(x) = x + 3x + 4 , find the value of f(�1).
Click here to see answer by vleith(2983)

Question 333694: What is the slope m and y-intercept point of the line 3x � y = �2?
Click here to see answer by vleith(2983)

Question 333695: What is the slope m and y-intercept point of the line y = 2x + 1?
Click here to see answer by solver91311(24713)

Question 333693: Complete the ordered pair (-2, ? ) so that it is a solution to the linear equation y = -5x - 4
Click here to see answer by rfer(16322)

Question 333693: Complete the ordered pair (-2, ? ) so that it is a solution to the linear equation y = -5x - 4
Click here to see answer by solver91311(24713)

Question 333698: Find the ordered pair solution to the following system of equations (Use any method):
3x � 2y = �1
2x + y = 4

Click here to see answer by solver91311(24713)

Question 333687: what is the linear equation x-5y=-5
Click here to see answer by solver91311(24713)

Question 333721: Graph the linear equation
2x+4y=16
also find its x and y intercepts
Click here to see answer by jim_thompson5910(35256)

Question 333725: Let C = Celsius degree and F= Fahrenheit degree scales for temperature. Assuming that relation between C and F is linear and drawing F on vertical axis. Two data points on the line relating C and F are (5, 41), (25, 77) Find the equation relating C and F. Can it be applied for practical purposes?
Click here to see answer by mananth(16946)

Question 333700: Solve the following word problem (Hint: setup and solve a system of equations):
One number plus twice another number gives a sum of 42. The difference of these same two numbers equals �3.
Find the two numbers

Click here to see answer by mananth(16946)

Question 333699: Find the ordered pair solution to the following system of equations (Use any method):
3x � y = 5
2x + 5y = -8

Click here to see answer by mananth(16946)

Question 333850: find the slope and intercept of the line 8y +3x+3+5+3x
Click here to see answer by stanbon(75887)

Question 333863: How do you describe the end behavior of a graph? Ex. f(x)=2x^2-7
Click here to see answer by stanbon(75887)

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