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

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Question 231248: How do you find the slope of (-19,3) and (-5,-12)?
Click here to see answer by checkley77(12844)

Question 231233: slope of 3 passes through (0,-6)
Click here to see answer by rfer(16322)

Question 231299: Question: Write the equation of the line:
parallel to y= -3x
y intercept = 1/3
Click here to see answer by texttutoring(324)

Question 231302: Write an equation of the line:
PARALLEL TO Y=1/2X - 3
Y INTERCEPT = 6
Thanks - I could solve this if they told me the coordinates, but I've only been give the y intercept (can I assume coordinates would be 0,6?). Thanks!
Click here to see answer by rfer(16322)

Question 231319: is this equation maximum or minimum
y=(x-2)^2
Click here to see answer by bamaboy(14)

Question 231041: Hello,
I am having a trouble solving the following problem:
Find a value for K so that the following system of equations has infinitely many solutions.

6x + 3y = 15
Kx + y = 5

A) 0 B) -6 C) 2 D) 3 E) 5
A, B, C, D, and E are the only allowable answers given for the problem. Please help.
Thank you,
David

Click here to see answer by ankor@dixie-net.com(22740)

Question 231783: Write an equation in slope-intercept form for a vertical line passing through the point(-4,-13)
Click here to see answer by Alan3354(69443)

Question 231807: find the point of intersection of y=x+3 and 2x=y=9
Click here to see answer by rfer(16322)

Question 231821: write equation for line passing through (0,3) and (-1,4)
Click here to see answer by rfer(16322)

Question 231631: use the given conditions to write an equation for the line in point-slop form, slope intercept form, and standard form.
Passing though(1,-2)and parallel to the line whose equation is 2x-4y=9
Click here to see answer by ankor@dixie-net.com(22740)

Question 231847: How to find an equation of the line passing through the pair of points in the form of Ax+By=C?
Equation
(-7,8), (-8,-5)

Click here to see answer by stanbon(75887)

Question 231853: directions: For this situation, find a linear model and use it to make a prediction.

situation: The cost of producing 4 units is $204.80. The cost of producing 8 units is $209.60. How much does it cost to produce 12 units?
Click here to see answer by stanbon(75887)

Question 231910: Solve for the following items:
a. The point on the x-axis that is equidistant (equal distance) from (12,6) and (8,2).
b. The distance between the points (6,4) and (18,4).
c. The distance between the points (1,4) and (19,6).
d. The midpoint between (12, 6) and (18, 4)
e. The midpoint between (-6, -8) and (23, 5)
Click here to see answer by jsmallt9(3758)

Question 231965: Find a linear equation whose graph passes through the given points.
Write the equation in slope-intercept form
(-3,-6) and (-2,-1)
y=?
use x as the varible
Thank you
Click here to see answer by rfer(16322)

Question 232150: How can I solve the following math problem please.
Find the equation in slope - intercept form of the line satisfying the conditions Slope-8/9; b=4
Click here to see answer by rfer(16322)

Question 232136: what is the slope of the line whose equation is 5x+3y=-15
Click here to see answer by rfer(16322)

Question 232231: how do i find the slope and y-intercept of this equation: 2y-6x=-8
Click here to see answer by antsmart56(3)

Question 232268: What is 4/5 of 1.75 displayed as a fraction.
Click here to see answer by rfer(16322)

Question 232534: write an equation:
slope = 1/3 passing through (-1,5)
Click here to see answer by Alan3354(69443)

Question 232617: write an equation of the line in standard form that is perpendicular to 2x+6y=-4 and pass through (-1,-1)
Click here to see answer by Alan3354(69443)

Question 232629: i need help with questions that a little harder.. like 2y-6=48 i dont know how to graph them.. please help
Click here to see answer by Alan3354(69443)

Question 232660: what is the slope of the line through the pair of points?
can you please show steps
E(1,-2)F(4, -8)
Click here to see answer by Alan3354(69443)

Question 232887: through:(3,5), slope=5/3

Click here to see answer by rfer(16322)

Question 232901: solve and please show step by ste s I can better understand
5x - 2y = 10
Click here to see answer by checkley77(12844)

Question 232949: can you help me figure out this linear equation and help me graph it.
y=-2/3x+5
Click here to see answer by rfer(16322)

Question 233026: what is the slope and y intercept of this equation
5x-2y=10
y=-5??

slope= -5/-2 ????
Click here to see answer by rfer(16322)

Question 233026: what is the slope and y intercept of this equation
5x-2y=10
y=-5??

slope= -5/-2 ????
Click here to see answer by solver91311(24713)

Question 233237: find an equation of th line that contains the given pair of points (13,21) (1,9)
Click here to see answer by Alan3354(69443)

Question 232533: point slope form of the line that passes through (4,-1) with the slope of two
Click here to see answer by rfer(16322)

Question 233311: What is the slope of the line passing through points A(5,4) and B(0,3)?
Click here to see answer by Alan3354(69443)

Question 233325: what is the smallest possible slope of y = x^3-3x^2+5x
Click here to see answer by Alan3354(69443)

Question 233452: I need to come up some equations to this problem, and Im having a little trouble.
A sales representative informs you that there are two floor plans still available and that there are a total of 56 houses available. Use x to represent floor plan #1 and y to represent floor plan #2 Write an equations that illustrates the situation.
Then write another equation indicating that there are 3 times as many home available with the second floor plan than the first, using the same variables.
Click here to see answer by Theo(13342)

Question 233459: What are the intercepts of equation x+y=56, and intercept of y=3x, and where would the lines intersect if you solved the system by graphing

Click here to see answer by Alan3354(69443)

Question 233461: This is the first equation,x= floor plan 1, y=floor plan 2 with total of 38 houses,
x+y=38
now I need an equation to illustrate this, floor plan 1 sells for 175,000, and floor plan 2 sells for 200,000. the available houses combined are worth 7,200,000
then using the elimination method to determine how many houses with each floor plan are available
I would like to see how you do this step by step, and thank you very much.
Click here to see answer by rfer(16322)

Question 233448: what is the solution of the system?
8x+9y=21
x=12-3y
Click here to see answer by rfer(16322)

Question 233513: I need help solving a problem
3/4 (3x - 1/2) - 1/3 < 2/3
Click here to see answer by stanbon(75887)

Question 233514: I have a story problem
The representative tells you that floor plan #1 sells for $175,000 and floor plan #2 sells for $200,000 She also mentions that all the available houses combined are worth $7,200,000. Write an equation that eliminates the situation, using x an y as your variables.
Then uses elimination method to determine how many houses with each floor plan are available.
Thank you for your immediate response
Click here to see answer by stanbon(75887)

Question 233530: In a recent promotion, AT&T charged a monthly fee of $3.95 plus 7 cents for each minute of long distant phone calls. If x is the number of minuetes of long distant calls, find the slope-intercept equation for the monthly bill.
Click here to see answer by rapaljer(4671)

Question 233535: find an equation of the line that contains the point (1,0) and is perpendiular to 2x +=-4
Click here to see answer by rapaljer(4671)

Question 233546: for equation writh in slop-intercept form and give the slop of the line and give the intercept6x+5y=40
Click here to see answer by stanbon(75887)

Question 233540: Find an euation of the line with the given slope and y-intercept. (3.4a)
Slope= -2.8: y-intercept: (0,19)
Click here to see answer by rfer(16322)

Question 233547: graph the equation by deterining the x and the y. thank you -4x+y=-20
Click here to see answer by rapaljer(4671)

Question 233545: write equation,in slop-intercept from,(3,4)and(5,8)
Click here to see answer by eggsarecool(46)

Question 233537: graph the line containing the given pair of points and find the slope (3.3a)
(-5, -2), (5,4)
Click here to see answer by Alan3354(69443)

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