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

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Question 358364: Find the equation( in slope intercept form)of the line passing through the points given coordinates(-4,0) ,(-1,2)
Click here to see answer by mananth(12270)

Question 358390: how to write an equation of a line containing the given point and perpendicular to the given point (0,8); 8x+7y=6
Click here to see answer by robertb(4012)

Question 358479: Please help me I'm stuck :(

Which is the equation of a line parallel to a line containing the points (-3, 1) and (6, 4) and passing throught the point (5, 2)?
Click here to see answer by CharlesG2(828)

Question 358522: The slope and y-intercept of the following equation:
2x + 3y = 5

Click here to see answer by Fombitz(13828)

Question 358530: What is the average rate of change of the following function between x1= -4 and x2=0.
p(x)=x^2-2
Click here to see answer by Fombitz(13828)

Question 358546: how much pure acid should be mixed with 5 gallons of a 50% acid solution in order to get an 80% acid solution?
Click here to see answer by ewatrrr(10682)

Question 358534: For the pair of functions f and g, find the sum, product, difference, and quotient and state the domain of each.
f(x)=x^2-2x-15
(a) (f+g)(x)

(b) (f-g)(x)
(c)(f*g)(x)
(d)(f/g)(x)

Click here to see answer by Fombitz(13828)

Question 358592: Different ways of getting 3x+2y=10? I got x=2 y=2 for example.
Click here to see answer by Fombitz(13828)

Question 358624: Have to graph the equation by plotting intercepts. I understand what intercepts are, but cannot solve this equation. Am I correct that all intercept points have a 0 in the ordered pair? Please help so lost on this one!
y + 1/2x = 3

Click here to see answer by Fombitz(13828)

Question 358627: I am having problems coming up with solutions to plot the intercept points...
1/2x - 1/5y = 1

Click here to see answer by Fombitz(13828)

Question 358642: Solve the system by graphing both equations on the same set of axes and then reading the solution from the graph.
y = 3 x - 8
12 x-4 y = 32
x=
y=
Click here to see answer by checkley77(12569)

Question 358637: Find the Slope of the line passing through each pair of points.
(4,1 1/2), (-2,2/3)
Click here to see answer by checkley77(12569)

Question 358813: solve for y
x - 8y = 3
please help :)
Click here to see answer by patricky(2)

Question 358829: How do I determine whether a system of a linear equation is independent, dependent, or inconsistent. ''Without'' Graphing.
Click here to see answer by stanbon(57308)

Question 358829: How do I determine whether a system of a linear equation is independent, dependent, or inconsistent. ''Without'' Graphing.
Click here to see answer by neatmath(300)

Question 358834: 7x+3y=0 i need to graph this too
Click here to see answer by stanbon(57308)

Question 358844: I have to find the x and y intercepts of the equation y = 5x
im coming up with (0,0)x-intercept and (0,0)y-intercept
Im not sure if Im doing it right?? please help :)
Click here to see answer by edjones(7569)

Question 358845: y=2x+3 y=2x-7
Click here to see answer by mananth(12270)

Question 358956: please find the equation of the line with the slope of 2/3 passing through (5,-2)thank you
Click here to see answer by Fombitz(13828)

Question 358973: Answers for find and equation of the line having the given slope and containing the given point 7/8, (3,-6)
Click here to see answer by Fombitz(13828)

Question 359014: The length of a rectangle is 8m more than 6 times the width. the perimeter is 156. what is the length and the width
Click here to see answer by ewatrrr(10682)

Question 359011: The sum of ages of kevin and ana is 58. In four years time, kevin will be as old as ana two years sgo. How old are they now? rex_dr@yahoo.com

Click here to see answer by ewatrrr(10682)

Question 359085: find an equation for the line that satisfies the given condition.
Passes through the origin parallel to the line 2x-4y=8
*SHOW WORK
Click here to see answer by Fombitz(13828)

Question 359089: find an equation for the line that satisfies the given condition.
(3,-2) purpendicular to the line x+4y+8=0
*show work
Click here to see answer by Fombitz(13828)

Question 359111: find the equasion for the line that satisfies the given condition.
(-2,4) Parallel to the line that contains (1,2) and (3,8)
*Show work
Click here to see answer by solver91311(16877)

Question 359113: find an equasion for the line that satisfies the given condition:
(-2,4) parallel to the line that contains (1,2) and (3,8)
*Show work
Click here to see answer by solver91311(16877)

Question 359097: find an equation for the line that satisfies the given condition.
passes through the(4,-3) purpendecular to the y axis
*show work
Click here to see answer by Alan3354(30993)

Question 359127: when milk is priced at $1.10 per quart and 4000 quarts are sold ber week but when milk is priced at $1.25 per quart only 3700quarst are sold:
a: use the given price and quantity to find a linear demand equasion of the form y=b+mp that gives the weekly demand y (in quarts) when the price of milk is p dollars per quart. Sketch a graph of the equation.
b: what does the slope og the graph og the demand equation represent and why is it negetive?
c: what do the p and y intercepts represent?

d: at what price will the demand drop to 3000 quarts?
e: a survey of local dairies indicates that the supply equation for milk sold at Akamee Dairy is y= 7800p-5070. sketch this line on your graph from part a.
f: what does the p-intercept of the supply equation represent?
g: from your graph, estimate the coordinates of the equilibrium point(the point at which the graghs of the supply and demand equation meet).
h: find the coordinates of the equilibrium point algebraically. What is the equalibriam price and how many quarts of milk are sold at this price?
Click here to see answer by stanbon(57308)

Question 358726: Write an equation of the line containing the given point and parallel to the given line. Express your answer in the form y=mx+b
(5,7); x+6y=5
The equation of the line is y=___________
(Simplify)
Click here to see answer by Fombitz(13828)

Question 358728: write in standard form 5/2(x)-9=8y
Click here to see answer by Fombitz(13828)

Question 358730: 0.2(x-2700)=x

Click here to see answer by Fombitz(13828)

Question 359196: Use the linear combination to solve the system.
X + 3y = 2
-X + 2y = 3
Click here to see answer by Fombitz(13828)

Question 359190: if a straight line with a slope of 5 contains the points (1,2) and (3,K), the value of K is?
Click here to see answer by nyc_function(2733)

Question 359190: if a straight line with a slope of 5 contains the points (1,2) and (3,K), the value of K is?
Click here to see answer by ewatrrr(10682)

Question 359216: write an equation of the line containing the given points
1. A(2,7), B(3,4) 2. P(-1,3), Q(0,4) 3. S(10,2), T(2,-2) 4. D(7,-4), E(-5,2)

Click here to see answer by Fombitz(13828)

Question 359244: if your ordered pair to find your slope is (-4,-1) and (-3,-2) what are the steps to find your slope and y-intercept?
Click here to see answer by ewatrrr(10682)

Question 359276: The equation y=35+0.8x gives the distance a sports car is from Flint after x minutes. How far is the sports car from Flint after 25 minutes? And how long will it take until the sports car is 75 miles from Flint?
Please help, I'm trying to help my nephew with his homework and I am stumped and have no clue how to answer this!
Click here to see answer by rfer(12657)

Question 359273: Which is the slope intercept form of an equation for the line containing (0,-3) with slope -1?
Click here to see answer by rfer(12657)

Question 359514: Wats the slope for y= -5/2 x +2
Click here to see answer by mananth(12270)

Question 359463: Please help me solve this problem. Evaluate the slope of the line passing through (3,5) and (-3,13). Thank you.
Click here to see answer by Fombitz(13828)

Question 359612: find the equation for the line that passes through the point (-4,5) and that is parallel to the equation -3/2x-2y=11/2
Click here to see answer by Fombitz(13828)

Question 359616: I'm trying to sketch the graph of each line by finding the x and y intercepts
x+2y=8
so far I have
x+2(0)=8
x=8
(0)+2y=8
divide by 2 on both sides
y=4
Am I doing this correctly because the graph only goes to 6
Click here to see answer by Fombitz(13828)

Question 359660: what is the solution of systems of equations
2x-y=5
x+3y=-8
Click here to see answer by Fombitz(13828)

Question 359628: 2x + y= 15
y= -3x
Click here to see answer by Fombitz(13828)

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