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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 177959: Please show me how to graph this inequality 2x<3y+6
Thanks
Click here to see answer by cartert(27)

Question 178638: What similarities and differences do you see between functions and linear equations. Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs for examples.
Click here to see answer by Mathtut(3670)

Question 178648: a function gives the value of C as 2 x (22/7) x r
Find C when r=7cm and r=91cm
Click here to see answer by Zef(4)

Question 178648: a function gives the value of C as 2 x (22/7) x r
Find C when r=7cm and r=91cm
Click here to see answer by Mathtut(3670)

Question 178645: find f(1) for f(x)= 2x^3-3x^2=x-21
Click here to see answer by Mathtut(3670)

Question 178646: This question concerns using the slope intercept form.
The problem is this,
write an equation of the line that has the given slope and passes through the given point.
m= -5, (-3,6)
how do i do this problem and please explain how to do it in slope intercept form
Click here to see answer by scott8148(6628)

Question 178668: Solve by graphing. Which one is it and explain: independent, inconsistent or dependent. Please
y = -x
y = -x + 3
I am confused with this one. Thank you
Click here to see answer by Alan3354(69443)

Question 178666: what is the slope of a line that passes throught(-8,9)and(0,6).

Click here to see answer by Alan3354(69443)

Question 178657: What is the difference between domain and range? Describe a real-life situation that could be modeled by a function.
Click here to see answer by Mathtut(3670)

Question 178675: find f(1) for f(x)=2x^3-3x^2+x-21
Click here to see answer by Mathtut(3670)

Question 178669: Solve by substitution, which one is it, independent, inconsistent, or dependent. Please show how it is solved. Thank you.
x-y = 3
3x - 2y = 3
and
2x -y = 3
6x - 9 = 3y
Click here to see answer by stanbon(75887)

Question 178671: need help finding which equation you would use to isolate a variable.
4x-y=-6
-m+5n=16
Click here to see answer by Mathtut(3670)

Question 178684: Can these systems be solved with the addition method. I am not getting it if it can. Show steps so I may see where I went wrong. Please thank you.
3x - 2y =8
x = -2y
and 4y = -5x
5x + 8y = 20
Thank you
Click here to see answer by stanbon(75887)

Question 178688: I tried solving this system, I am not getting it.
Using the addition method, solve then state if it is independent, inconsistent, dependent. show steps so I can see what I did wrong.
-3x + y =3
2x - 3y =5
and
5x - 3y = -20
3x + 2y = 7

Click here to see answer by stanbon(75887)

Question 178689: Determine whether each system of linear equations has (a) one and only one solution, (b) infinitely many solutions, or (c) not solution. Find all solutions whenever they exist.
1.) x - 3y = -1
4x + 3y = 11
Click here to see answer by stanbon(75887)

Question 178584: -3< (2x-1)/3<7
please help me with this solution
thank you.
Click here to see answer by stanbon(75887)

Question 178696: i hate word problems.
A restaurant purchased eight tablecloths and five napkins for $106. A week later, a tablecloth and six napkins were brought for $ 24. Find the cost of one tablecloth and one napkin; assuming the same prices for both purchases.
This is what I started.
8t + 5n = 106
t + 6n = 24
mulyiply both sides by ( -8)
8t + 5n + 106
-8t - 48n = -192
-43n = 86
n = -2
I don' t think this is right.
Click here to see answer by Mathtut(3670)

Question 178723: m=4, (-3,0) m=3, (2,-2)
m=-3, (1/2,2)
m= -2, (3, 1/3)
Can you find and equation of the line that has the given slope and passes through the given point?

Click here to see answer by Fombitz(32388)

Question 178732: What similarities and differences do you see between functions and linear equations? Are all linear equations functions? Is there an instance when a linear equation is not a function. Create an equation of a nonlinear function and provide two inputs.
Click here to see answer by Mathtut(3670)

Question 178757: why is the line x=4 a vertical line?
Click here to see answer by Mathtut(3670)

Question 178762: I need help with nonlinear functions, a few examples and some imputs to evaluate
Click here to see answer by Mathtut(3670)

Question 178784: How to solve C= 2.85n + 30.52 to a) Find and interpret the C-intercept for the line?
b) Find and interpret the n-intercept for the line?
c) Graph the line for n ranging from 0 through 20?
Can you please offer me some helpful information on how to solve equations such as these?
Thank you,
kelloggdmk
Click here to see answer by Mathtut(3670)

Question 178798: If a line passes through (5, 2) and has a slope of 2/3, then what is the value of y on this line when x = 8, x=11 and x= 12?
Click here to see answer by Mathtut(3670)

Question 178800: Solve each system by graphing
y = 2x+ 1
x+y =-2
Click here to see answer by jojo14344(1513)

Question 178816: determine the best method to solve each system of equations. then solve the system.
3x-5y=7
2x+5y=13
Click here to see answer by jim_thompson5910(35256)

Question 178932: use the y-intercepts to graph the equation -6x+y=21
Click here to see answer by Mathtut(3670)

Question 178967: Find the slope and y-intercept and graph the following linear equation.
y=-4x+1 I have the graph for this problem, but I need to know the steps it took to get the slope and y-intercept. Can you please explain each step. Thank you
Click here to see answer by Mathtut(3670)

Question 178918: What is the equation of the line passing through the points(3,7) and (11,13)?
Also explain to me what is slope?
Click here to see answer by Mathtut(3670)

Question 178918: What is the equation of the line passing through the points(3,7) and (11,13)?
Also explain to me what is slope?
Click here to see answer by ankor@dixie-net.com(22740)

Question 178977: A line has a slope of 7. Use the slope formula to find the missing coordinate
(x,8) (4,1)
x=5 but when I try to use the slope formula I am making a mistake somewhere. Please explain the steps you took to solve this problem.
Click here to see answer by stanbon(75887)

Question 178979: Find the slope and y-intercept
3x+2y=6 can you explain how y=-3/2 (I keep getting y=3/2) where am I going wrong?
Click here to see answer by solver91311(24713)

Question 178994: write an equation in point slope form and standard form of the line that passes through the given points: (-5,2),(-4,3)
Click here to see answer by jim_thompson5910(35256)

Question 179006: find the equation of the line that passes through the points (3,7) and (-4,0).
Click here to see answer by jim_thompson5910(35256)

Question 178986: 3/x = 7/8
7x=3*8
7x=24
x=24/7=3 3/7

Click here to see answer by checkley75(3666)

Question 179014: write an equation in point slope form and standard form of the line that passes through the given points: (0.-1), (-6,-9)
Click here to see answer by jim_thompson5910(35256)

Question 179028: I can't seem to solve both just one of them, where did I go wrong? Please help.
Solve by any method. I tried the addition method.
3x + 2y = -3
2x - 5y = 17
I solved for y but when I plugged back in to solve for x it did't work. Thanks.
Click here to see answer by vleith(2983)

Question 179029: x/5 - 2 = x/3
Please explain this equation. I am not familiar with the set up. Show steps so I may work on my actual problem. Thank you so much.
I worked on a simular one.
x+2/3 = 4/5
I got x= 2/5. Did I solve correctly?
Click here to see answer by jim_thompson5910(35256)

Question 179055: I need help solving this linear and absolute value equation. I am to solve and the put in sets in interval notation.
Let A=(-oo,1), B=[-1,oo). Find AUB and ANB
Thanks
Click here to see answer by Mathtut(3670)

Question 179058: Hi! i really need your help. I have to solve the following inequality, write the solution set in interval notation:
3+2(x-1)<5+8(x-2)
Thanks So Much
Click here to see answer by Mathtut(3670)

Question 179046: y=1/5x-6
Complete the ordered pair and graph equation by plotting points.
(5,__)
(0,__)
Click here to see answer by Mathtut(3670)

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