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

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Question 412540: 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 solver91311(16890)

Question 412628: how could you tell when a graph has a linear
Click here to see answer by rfer(12660)

Question 20: Can a linear equation have two variables?
Click here to see answer by want2learn29330(1)

Question 20: Can a linear equation have two variables?
Click here to see answer by andkon(15)

Question 412698: Find the equation for the line that is perpendicular to the line with the equation 3/4x+3y=51/4 passing through the point (-3,-1)
Click here to see answer by layaya(7)

Question 412865: 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 stanbon(57356)

Question 412890: how to graph a line with the indicated slope and y intercept. Slope = -7 and y-intercept (0,9)
Click here to see answer by rfer(12660)

Question 412805: 20x-50=10x+100
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Question 412874: 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 mananth(12270)

Question 412954: give an ordered pair (m,n)of numbers that satisfy the equation 4m+n=4
Click here to see answer by shree840(260)

Question 412957: -5 ÷ m2 – 2(m – 2), for m = 1
Click here to see answer by DR-motherfuckin-E(1)

Question 412957: -5 ÷ m2 – 2(m – 2), for m = 1
Click here to see answer by Alan3354(30993)

Question 412999: 2x + y = 8
y = -x + 5
Click here to see answer by ewatrrr(10682)

Question 412729: Use the graph of y = x^2 + 4x - 5 to answer the following:

a) Without solving the equation or factoring, determine the solution(s) to the equation, , using only the graph.

Answer:
Explain how you obtained your answer(s) by looking at the graph:
b) Does this function have a maximum or a minimum?
Answer:
Explain how you obtained your answer by looking at the graph:
c) What are the coordinates of the vertex in (x, y) form?
Answer:
d) What is the equation of the line of symmetry for this graph?
Answer:

Click here to see answer by ewatrrr(10682)

Question 413022: The width of a rectangle is 3ft less then the lenght. The Perimeter is 62ft. Find the lenght and the width of the rectangle
Click here to see answer by rfer(12660)

Question 413067: 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 shree840(260)

Question 413067: 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 rfer(12660)

Question 413101: Write a function rule to describe.
The selling price s(c) after a 45% markup of an item as a function of the stores' cost c.
Click here to see answer by ewatrrr(10682)

Question 413211: Write each equation in slope-intercept form. Then identify the slope and the y-intercept for each line: 2x-y=12

Click here to see answer by solver91311(16890)

Question 413301: I need to graph linear equations and I have isolated "y" but then I am drawing a blank as to where to go from there. How do you find the solution sets for 4x+y=16
Click here to see answer by rfer(12660)

Question 413343: How do i use the substitution method for
-3x+y=4
x+13y=22
Click here to see answer by algebrahouse.com(1079)

Question 413559: 1. How do I find the equation of the line passing through the point (1,1) and parallel to y=5x-6?
2. How do I find the equation of the line passing through the point (1,5) and parallel to 4x+7y=18?
Hello, I am having a very hard time with this coordinate geometry problem. Can anyone please help? Thanks so much!
Click here to see answer by sudhanshu_kmr(1152)

Question 413566: Hello, I am stuggling with this co-ordinate geometry problem. Any help is greatly appreciated!
Find the equation of the perpendicular bisector of the interval joining (-5,2) and (3,-4). Leave your answer in general form.
Thank you so much for your time and consideration!
Click here to see answer by ewatrrr(10682)

Question 413564: Hi, can anyone help figure out these two coordinate geometry problems?:
1) How do I find the equation of the line passing through (12,4) and perpendicular to y=3x+6? Leave answer in general form.
2) How do I find the equation of the line passing through (6,10) and perpendicular to 3x-4y=12? Leave answer in general form.
Thank you so much for your time! I have test on these tomorrow.
Click here to see answer by Alan3354(30993)

Question 413589: Decide whether the pair of lines is parallel, perpendicular or neither.
4x+3y=3
3x+4y=9
Here is what I have:
4x+3y=3
3y=-4x+3
y=-4/3x + 3/3 (= 1)
3x+4y=9
4y=-3x+9
y=-3/4x + 9/4
What would that make this and can you help explain the difference? I am pretty sure that parallel has the same slope and perpendicular is -1/x. I maybe be totally wrong, but I think it is neither.
Help would be appreciated.
Thank you much,
Jeffrey G
Click here to see answer by ewatrrr(10682)

Question 412566: 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 ewatrrr(10682)

Question 413634: Will you please help me write an equation for in slope intercept that passes through given point and is parallel to the graph of the given equation.
(1,-3);y+2=4(x-1)
Thank You
Click here to see answer by sudhanshu_kmr(1152)

Question 413711: -x + 4y = 8 use the intercepts to graph the equation
Click here to see answer by rfer(12660)

Question 413879: What is the positive or negative slope of 8x + 3y=24?
Click here to see answer by richard1234(5390)

Question 414087: I am stuck on a problem, my teacher only wants me to use the Elimination method
6x-y=20
3x-y=7
I am getting
x=3 but when I substitute for x in the second equation I get
6(3) + y = 20
18 + y = 20
but I can't divide each side by 18 evenly, how do I solve for y?
Click here to see answer by ewatrrr(10682)

Question 414156: how do you graph y=1/8m+1
Click here to see answer by MathLover1(6634)

Question 414197: Solve the system of equations by graphing. Then classify the system as consistent or inconsistent and as dependent or independent
x+y=16
x-y=-2
Click here to see answer by stanbon(57356)

Question 414303: Points A(0, 2) and B(3, 20) lie on the graph of y = 6x + 2. Which of the following points is collinear with A and B
(4, -7)
(1, -2)
(-2, 10)
(0, -5)

Click here to see answer by ewatrrr(10682)

Question 414308: Points A(0, 2) and B(3, 20) lie on the graph of y = 6x + 2. Which of the following points is collinear with A and B

(-2, 14)
(1, 8)
(-3, 22)
(2, 12)

Click here to see answer by ewatrrr(10682)

Question 414312: The measure of Angle 2 = (3x -8) degrees and the measure of Angle 3 = (2y -17) degrees. What are the values for x and y
Click here to see answer by stanbon(57356)

Question 414375: the cost of cheese varies directly with the number of pounds bought.if 2 pounds cost $8.40,find the cost of3.5 pounds
Click here to see answer by emargo19(101)

Question 414414: what is the slope of -3x + y= 0?

Click here to see answer by rfer(12660)

Question 414421: m3 for m=3

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Question 414415: it costs 50 dollars plus 10 dollars per hour to rent a park pavillion. 1.write an equation in slope-intercept form that shows the cost y for renting the pavillion for x hours. 2.find the cost of renting the pavillion for 8 hours

Click here to see answer by rfer(12660)

Question 414455: what is the slope of 2y+4x +9=10+4x
Click here to see answer by rfadrogane(214)

Question 414471: is this function even odd or neither?
f(x)= -7 lxl + 3x^2 + 5
Click here to see answer by jim_thompson5910(28595)

Question 414536: I need help with fractions and solving linear equations. The problem is
Y+3/5x+2

Click here to see answer by stanbon(57356)

Question 414537: graph each equation using the slope and y-intercept
y=x+5

y=2x+5
Click here to see answer by mananth(12270)

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