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

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Question 169955: By looking at two linear equations, is there a way you can tell if the corresponding lines are parallel?
Click here to see answer by ankor@dixie-net.com(22740)

Question 169955: By looking at two linear equations, is there a way you can tell if the corresponding lines are parallel?
Click here to see answer by solver91311(24713)

Question 169956: Do two linear equations always have a solution? if not why? if yes, under what comditions?
Click here to see answer by solver91311(24713)

Question 169963: this book is so hard to understand please help!!!! Thank you very much.

Solve the following
-2x = 3x + 4
Click here to see answer by Alan3354(69443)

Question 169963: this book is so hard to understand please help!!!! Thank you very much.

Solve the following
-2x = 3x + 4
Click here to see answer by solver91311(24713)

Question 169966: please help me I need help bad can't understand this book thank you
A function gives the value of C as 2x(22/7) xr. Find C when r= 21cm
Click here to see answer by solver91311(24713)

Question 169967: please help thank you
sovle
3x/4=6
Click here to see answer by nerdybill(7384)

Question 169968: I need your help please help thank you
solve
6=-2x/4
Click here to see answer by nerdybill(7384)

Question 169994: Determine wheather this statemant makes sense or does not make sense and explain your reasoning.
Because the percentage of the us population that was foreign born decreased from 1910 through 1970 and then increased after than, an equation of the form y=ax^2+bx+c, rather than a linear equation of the form y=mx+b, should model the data.
Click here to see answer by jim_thompson5910(35256)

Question 170002: Solve by substitution or elimination method:
3x - 2y = 8
-12x + 8y = 32
Solve by substitution or elimination method:
7x - 5y = 14
-4x + y = 27
Solve by substitution or elimination method:
-4x + 3y = 5
12x - 9y = -15

Click here to see answer by jim_thompson5910(35256)

Question 170003: Plot the graph of the equations 3x - 8y = 5 and 4x - 2y = 11 and interpret the result.
Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result.
Plot the graph of the equations 10x - 4y = 3 and 5x - 2y = 6 and interpret the result.

Click here to see answer by checkley77(12844)

Question 169998: The points (3, 9), (5, 13), (15, 33), (34, 71), (678, 1359), and (1234, 2471) all lie on line M.
The points (3, -9), (5, -11), (15, -21), (34, -40), (678, -684), and (1234, -1240) all lie on line N.
a. Form the equations of both the lines. Show your work.
b. What are the co-ordinates of the point of intersection of lines M and N?
c. Write the co-ordinates of the intersections of lines M and N with the x-axis.
d. Write the co-ordinates of the intersection of lines M and N with the y-axis.

Click here to see answer by checkley77(12844)

Question 170036: can someone help me in solve this problem I'm 60 year old lady gone back to school and math is not my strong subject help is needed. thank you.
A function gives the value of C as 2 muliply(22/7) xr.
Find C when r=21cm and r= 84cm
Click here to see answer by checkley77(12844)

Question 170041: Solve the non-linear system of equations. Give Exact Values:

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

Question 170157: using AX =BY+C
solve and graph:
3x+y=3
Click here to see answer by stanbon(75887)

Question 170159: Using AX=BY+C
solve and graph:
x-2y=4
Click here to see answer by jim_thompson5910(35256)

Question 170176: Find the equation, in the slope-intercept from, of the line that passes through the points (5,2) and (-7,3). Write the equation in slope-intercept form.

Click here to see answer by jim_thompson5910(35256)

Question 170177: Find the equation of the line perpendicular to 3x-4y=9 and passing through (2,-1). Write the equation in standard form, with all integer coefficients.
Click here to see answer by jim_thompson5910(35256)

Question 170235: How do I graph the linear equation 3y= -9?
Click here to see answer by Alan3354(69443)

Question 170266: Help On This Will Be Great Appreciated<3
Solve The Non-Linear system of Equations. Give Exact Values.

Click here to see answer by Earlsdon(6294)

Question 170282: The preimeter of the triangle shown in the accompany figure is 12 meters. Determine the values of x, x+1, and x +2 by solving the equation.
x+(x+1)+(x+2)=12
Click here to see answer by jim_thompson5910(35256)

Question 170372: Hi need some help with my daughters homework. Here is the question:
Identify the slope for each line of best fit.
y= 3x + 4
y= 2X - 8
y= -4 x +6
y= 11x
y= .35x - 7
Any help would be wonderful. Thanks Chuck
Click here to see answer by Alan3354(69443)

Question 170422: Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result.
I am having such a difficult time solving this equation. Can someone please help me understand how to do this problem, any help will be greatly appreciated.
Click here to see answer by jim_thompson5910(35256)

Question 170441: how do I solve the following system of aquation by graphing...
I can only get one point for each of the equations but I can't seem to get the 2nd point from both equations.
x - y = 1
x + y =3
Click here to see answer by Mathtut(3670)

Question 170624: Please help me with this. I am totally confused. Thanks.
1. Plot the graph of the equations 3x - 8y = 5 and 4x - 2y = 11 and interpret the result.
2. Plot the graph of the equations 4x - 6y = 2 and 2x - 3y = 1 and interpret the result.
3. Plot the graph of the equations 10x - 4y = 3 and 5x - 2y = 6 and interpret the result.

Click here to see answer by stanbon(75887)

Question 170622: Solve the following equations algebraically.
a)t 2/3=4
Answer:

Show your work here:

b)

Click here to see answer by Alan3354(69443)

Question 170564: Find the equation, in slope-intercept form, of the line that passes through the points (5, 2) and (-7, 3). Write the equation in slope-intercept form.

Click here to see answer by jim_thompson5910(35256)

Question 170563: Find the equation, in slope-intercept form, of the line that passes through the points (5, 2) and (-7, 3). Write the equation in slope-intercept form.

Click here to see answer by jim_thompson5910(35256)

Question 170589: y=-1/2x+5/2
Click here to see answer by jojo14344(1513)

Question 170589: y=-1/2x+5/2
Click here to see answer by checkley77(12844)

Question 170655: find the slope of the graph??
(1988,1713), (2003,5671)
Click here to see answer by midwood_trail(310)

Question 170694: The problem is not from a text book it is a homework sheet from my instructor; please graph the linear equation for y=-2
Click here to see answer by Alan3354(69443)

Question 170731: please help I know that I ask for help early but I neddt to see step by step for me to understand I'm 60 years old. thank you so much.....
Plot the graph of the equations 10x - 4y = 3 and 5x - 2y = 6 and interpret the result.
thank you in advance. really thank you so much.
Click here to see answer by jim_thompson5910(35256)

Question 170815: find x and y intersept y=2x/3+2
Click here to see answer by Mathtut(3670)

Question 170831: what are the slope and y intercept of 8x+2y=4
solve A= pis(r1+r2) for r1
Click here to see answer by Mathtut(3670)

Question 170898: The linear equation x = -1 graphs as a horizontal/vertical/diagonal line (choose the correct label and type it below). Describe how you determined your answer. Please help.
Click here to see answer by KnightOwlTutor(293)

Question 170959: Find the solution to each system by the substitution method. Check your answers

4x+3y=9
3y+6=x
Click here to see answer by jojo14344(1513)

Question 171041: find the equation of the line that is parallel to the line x=5 and passes throught the point (2,-1)

Click here to see answer by Alan3354(69443)

Question 171091: how do i write y-13=4(x-2)in standard form? It's On page 290.
Click here to see answer by jim_thompson5910(35256)

Question 171091: how do i write y-13=4(x-2)in standard form? It's On page 290.
Click here to see answer by Mathtut(3670)

Question 171240: idk, how to solve any of the point slope, slope intercept, or standard form equations.

Click here to see answer by Mathtut(3670)

Question 171272: Find the solution to each system by the substitution method. Check your answers
4x+3y=9
3y+6=x
Click here to see answer by solver91311(24713)

Older solutions: 1..45, 46..90, 91..135, 136..180, 181..225, 226..270, 271..315, 316..360, 361..405, 406..450, 451..495, 496..540, 541..585, 586..630, 631..675, 676..720, 721..765, 766..810, 811..855, 856..900, 901..945, 946..990, 991..1035, 1036..1080, 1081..1125, 1126..1170, 1171..1215, 1216..1260, 1261..1305, 1306..1350, 1351..1395, 1396..1440, 1441..1485, 1486..1530, 1531..1575, 1576..1620, 1621..1665, 1666..1710, 1711..1755, 1756..1800, 1801..1845, 1846..1890, 1891..1935, 1936..1980, 1981..2025, 2026..2070, 2071..2115, 2116..2160, 2161..2205, 2206..2250, 2251..2295, 2296..2340, 2341..2385, 2386..2430, 2431..2475, 2476..2520, 2521..2565, 2566..2610, 2611..2655, 2656..2700, 2701..2745, 2746..2790, 2791..2835, 2836..2880, 2881..2925, 2926..2970, 2971..3015, 3016..3060, 3061..3105, 3106..3150, 3151..3195, 3196..3240, 3241..3285, 3286..3330, 3331..3375, 3376..3420, 3421..3465, 3466..3510, 3511..3555, 3556..3600, 3601..3645, 3646..3690, 3691..3735, 3736..3780, 3781..3825, 3826..3870, 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