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

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Question 326083: Can someone please explain to me how to solve the following using the elimination method?
4x-2y=16
5x+7y=1
Click here to see answer by Jk22(389)

Question 326097: write each equation in slope-intercept form
y+ 3=-3(x-6)
Click here to see answer by vksarvepalli(154)

Question 326107: 4x-2y=16
5x+7y=1
We eliminate. y from 1 to get 2y=4x-16 y=2x-8
We then substitute. in the 2nd equation 5x+14x-56=1 19x=57=x=3, y=6-8=-3
x=3
y=-2
Can some tell me if I did this right? I was suppose to solve using the elimination method. Thanks
Click here to see answer by solver91311(16885)

Question 326102: find the slope and y-intercept for each line
x+2y=3
Click here to see answer by Fombitz(13828)

Question 326098: fund the equation of the line that goes through the given point and has the given slope. write the answer in slope-intercept form.
(-1, -5), -8
Click here to see answer by Fombitz(13828)

Question 326127: graph the equation by plotting points. y=3x-9
Click here to see answer by Fombitz(13828)

Question 326128: write an equation of the line containing the given point and parrallel to the given line. express your answer in the form y=mx+b. (7,8); x+4y=3
Click here to see answer by solver91311(16885)

Question 326126: write an equation of the line containing the given point and parellel to the given line. express your answer in the form y=mx+b. (3,6); x+6y=7
Click here to see answer by solver91311(16885)

Question 326096: in each case determine whether the lines are parallel or perpendicular, or neither.
y=x+7
y=-x+2
Click here to see answer by Fombitz(13828)

Question 326164: what is the X-intercept of X-intercept of 5/7x-2y=4??
Click here to see answer by Fombitz(13828)

Question 326092: graph the line using its y-intercept and slope y + 4x =8
Click here to see answer by checkley77(12569)

Question 326086: Find three different ordered pairs that are solutions of the equation. Graph the equations. y=2x-6
Click here to see answer by solver91311(16885)

Question 326226: 3x - 2y =8 let y = -1
Click here to see answer by stanbon(57347)

Question 326241: -1/4(x-8)+1/2(x+2)=x+9
Could someone help to explain how to solve this?
I seem to be having a problem with solving linear equations. I can usually get the first part, and then I lose it. Could you please explain the steps, as the textbook doesn't seem to explain it to my understanding. Thanks so much.

Click here to see answer by scott8148(6628)

Question 326244: graph the equation using the slope and the y-intercept.
y=9/8x+3
Click here to see answer by rfer(12660)

Question 326262: How many solutions of a system of two linear equations in two unknowns can exist?

Click here to see answer by jim_thompson5910(28595)

Question 326265: How would each possible number of solutions appear graphically?
Create systems of linear equations with each possible number of solutions.
Click here to see answer by jim_thompson5910(28595)

Question 326185: A plane makes a trip 5040 km in 7 h, flying with the wind. Returning against the wind , the plane makes the trip in 9 h. What is the speed of the wind?
Click here to see answer by Fombitz(13828)

Question 326309: show steps on how to break down and graph the equation as a line 2x-5y=-20
Click here to see answer by AAfter Search(61)

Question 326390: how do you write this equation in intercept form
Y+3=3/4(x-2)
Click here to see answer by Fombitz(13828)

Question 326439: What is the y-intercept of the line -3x+4y=12?
A) 3/4
B) -3/4
C) 3
D) -3
Click here to see answer by Fombitz(13828)

Question 326449: Find the intercepts of the graph of 3y-7x=42.
Click here to see answer by vksarvepalli(154)

Question 326437: what is the slope of the line 5x-3y=15?
F) 5/3
G) -5/3
H) 5
I) -5
Click here to see answer by Fombitz(13828)

Question 326532: Please help with the following:
Graph the line containing the given pair of points and find the slope.
(4,0), (-3,-4)
Find the slope of the line:
m=
Click here to see answer by solver91311(16885)

Question 326533: Please help!
Use the intercepts to graph the equation.
x+3y=6
Click here to see answer by rfer(12660)

Question 326547: considering the two lines
y=2x-1 and y= -x +3
how do decide if the two lines intersect? and if they do what is the point of intersection? please show working. Thanks
Click here to see answer by user_dude2008(1861)

Question 326535: Please help!
Graph the system of inequalities.
y>-5
x>6
Click here to see answer by Alan3354(30993)

Question 326698: an example of an inconsistent system and also a dependent system.

Click here to see answer by Fombitz(13828)

Question 326623: What is the graph of 2(y - x)= 3 using the slope-intercept method?
Click here to see answer by Fombitz(13828)

Question 326696: 1. m= 2/3,x-int. = 3
2.m=2,int. = 5
Click here to see answer by user_dude2008(1861)

Question 326756: Two airplanes are leaving O'Hare at the same time, one bound for New York and the other for California. The one heading to California has a tail wind and is thus going 25 MPH faster than the one headed for New York. If after one hour they are 575 miles apart, what are their speeds?
Since they are 575 miles apart after 1 hour, the sum of their speed must be 575 MPH. If the slow one is going X MPH and the fast one is going X+25 MPH, then X+X+25=575. Solve for X.
I need help solving this.
Click here to see answer by Fombitz(13828)

Question 326759: Find the equation for the line passing through (2,1) with slope 5/2.
I have been working on trying to solve this for three days and have had no luck.
Click here to see answer by Fombitz(13828)

Question 326761: Find the equation for the line passing through the origin and perpendicular to y = ½ x – 2.
Click here to see answer by Fombitz(13828)

Question 326762: Graph the piecewise continuous function
f(x)={x,-2 {x^2+1,x>=1
Sorry I hope I worte this out ok. It is hard when you don't have the right program.

Click here to see answer by Fombitz(13828)

Question 326767: find a number which is as much greater than 21 as is less than 71.
Click here to see answer by Fombitz(13828)

Question 326767: find a number which is as much greater than 21 as is less than 71.
Click here to see answer by stanbon(57347)

Question 326809: If I have a grapg with a line running through y3 and x4 what is my slope?
I have the points as being y=0,3 and x=4,0
M= 3-0/0-4 = 3/-4 = -.75
Is this correct?
Click here to see answer by rfer(12660)

Question 326811: I am looking for how to solve an equation with two variables. The problem asks you to find the value of x and y in the equation 14x+2y+4x+90=360. I know how to do this problem with only one variable, not two.
Thank you.
Click here to see answer by JBarnum(2044)

Question 326778: Suppose the demand and price for the HBO cable channel are related by p=-.5q+30.95, where p is the monthly price in dollars and q is measured in millions of subscribers. If the price and supply are related by p=.3q+2.15, what are the equilibrium quality and price?
Help I am lost!!!
Click here to see answer by jessica43(140)

Question 326886: find the coordinates of the vertex for the parabola f (x) = 3x squared -2x.
Click here to see answer by solver91311(16885)

Question 326889: find the coordinates of the vertex for the parabola f(x) =4xsquared-x+2
Click here to see answer by Fombitz(13828)

Question 326882: find the inverse of f(x) = x^2/2 if x is greater than or equal to 0.
Click here to see answer by Fombitz(13828)

Question 326931: How many solutions exist for the lines
x+y=3 and y= x +3?
How do obtain the solution?
Click here to see answer by solver91311(16885)

Question 326929: How many solutions exist and how do I find the solution for
y= 2x+3
y= -x-4
Thank you
Click here to see answer by solver91311(16885)

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11161..11205, 11206..11250, 11251..11295, 11296..11340, 11341..11385, 11386..11430, 11431..11475, 11476..11520, 11521..11565, 11566..11610, 11611..11655, 11656..11700, 11701..11745, 11746..11790, 11791..11835, 11836..11880, 11881..11925, 11926..11970, 11971..12015, 12016..12060, 12061..12105, 12106..12150, 12151..12195, 12196..12240, 12241..12285, 12286..12330, 12331..12375, 12376..12420, 12421..12465, 12466..12510, 12511..12555, 12556..12600, 12601..12645, 12646..12690, 12691..12735, 12736..12780, 12781..12825, 12826..12870, 12871..12915, 12916..12960, 12961..13005, 13006..13050, 13051..13095, 13096..13140, 13141..13185, 13186..13230, 13231..13275, 13276..13320, 13321..13365, 13366..13410, 13411..13455, 13456..13500, 13501..13545, 13546..13590, 13591..13635, 13636..13680, 13681..13725, 13726..13770, 13771..13815, 13816..13860, 13861..13905, 13906..13950, 13951..13995, 13996..14040, 14041..14085, 14086..14130, 14131..14175, 14176..14220, 14221..14265, 14266..14310, 14311..14355, 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