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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 461519: When asked to graph a funtion we are asked to identify the intercepts, why? Why are the important? Give a real world example.
Thanks
Click here to see answer by richard1234(7193)

Question 461657: Which equation has a graph that is parallel to the graph of 4x - 2y = 1?

Choose one answer. a. y = 2/3x - 2
b. 2x -+ 4y = -1
c. 6x -3y = 9
d. y = -2x + 8

Click here to see answer by amoresroy(361)

Question 461656: Which equation has a graph that is perpendicular to the graph of 4x - 2y = 1?

Choose one answer a. y = 2/3x - 2
b. 6x -3y = 9
c. 2x + 4y = -1
d. y = -2x + 8

Click here to see answer by rwm(914)

Question 461762: 45.70x=45.70
32.35x=32.35
What would the linear equation look like and what would the answer be,
I got y=0 and x = 1
is this correct?

Click here to see answer by Gogonati(855)

Question 461829: graph y=1+1.50x
graph y=16-x
indicate the point where the equations are equal
Click here to see answer by MathLover1(20849)

Question 461846: what is the slope of the line with the equation 2x+3y+6=0?

Click here to see answer by MathLover1(20849)

Question 461876: find the slope of the line that passes through (4.5,13.5) and (-3.5,-9)
Click here to see answer by mananth(16946)

Question 461921: Find the slope of the line through the given points.
(-11, -17) and (4, -7)
Click here to see answer by algebrahouse.com(1659)

Question 461949: For example on a problem like this: -4x + 5 - 12 = ? How do i know if I need to combine like terms or what to do.
Click here to see answer by richard1234(7193)

Question 461913: the value v of a shopkeepers inventory software program, in hundreds of dollars is given by:
v=(-3/4)t+6
where t is the number of years since the shopkeeper first bought the program.
Graph the equation and use the graph the estimate what the program is worth 4 years after it was first purchased.
Tell me where to graph the numbers and i can do it on my own graph
Click here to see answer by rwm(914)

Question 462012: I am horribly confused when it comes to algebra. I can graph liner equations, but I am confused as to how to obtain ordered pairs so I can plot the points
Example: y=3/5x+2. How do I determine what numbers to use to calculate a ordered pair.
Click here to see answer by katealdridge(100)

Question 462079: write an equation for the line that passes though (-11, 7) and whose slope is undefined. give an answer in standard form.
Click here to see answer by MathLover1(20849)

Question 462106: Using the graph, which of these ordered pairs is the best estimate of the solution of the system y = 3x + 2 and y = -1/4 x + 1?
Click here to see answer by math-vortex(648)

Question 462136: giving the function H(x) = 2x + 7, find each of the following H(1)=. H(-8)=. H(6.6)=
Click here to see answer by solver91311(24713)

Question 462143: Write the equation of a line that passes through (3, 5) and (6, -2).
Please and thanks!
Click here to see answer by MathLover1(20849)

Question 462143: Write the equation of a line that passes through (3, 5) and (6, -2).
Please and thanks!
Click here to see answer by mananth(16946)

Question 461875: y=0.15x+0.79
0.11x-y=-0.85
are these lines parallel or perpendicular and why?

Click here to see answer by richard1234(7193)

Question 462346: Can someone help me find the slop if it exists.
X = -2

Click here to see answer by asuar010(338)

Question 462381: Can someone help me find the slope if it exists, of the line containing the pair of points.
(2,9) and (7,-2)

Click here to see answer by algebrahouse.com(1659)

Question 462381: Can someone help me find the slope if it exists, of the line containing the pair of points.
(2,9) and (7,-2)

Click here to see answer by stanbon(75887)

Question 462393: Can someone help me solve using the multiplication principle.
-1/2x = -7/8

Click here to see answer by josmiceli(19441)

Question 462385: Can someone help me solve the following?
5/4x +1/8x= 5/8+ x

Click here to see answer by mananth(16946)

Question 462326: what is the intersection of these 2 inequalities?
y < 5x-5
y < x+1
Click here to see answer by solver91311(24713)

Question 462472: How do I write the equation of the line that has a y-intercept of (0,-6) and is perpendicular to the line 3x - 6y = 8.
Click here to see answer by nerdybill(7384)

Question 462489: find the equation of the line that contains the point (3,-6) and parallel to y=-3x-5
Click here to see answer by rwm(914)

Question 462176: find the coordinates of the point where the line 4y+6x+2=0 meets the line through PQ
P=(3,5)
Q=(-1,3)
the equation is Y=1/2x+3.5
PLEASE HELP!!
Click here to see answer by rwm(914)

Question 462494: Jeff has $3.15 made up of nickels and dimes. If he has five times as many nickels as dimes, how many dimes does he have?
Click here to see answer by josmiceli(19441)

Question 462585: please I'am really struggling and I want to know what do I do if I'm asked to fing the intercept or slope of a number what do I do first or how will I know by just looking at a set of numbers. Meaning how will I identifie with it. Please my grade is depending on this respose. Meyosha Jackson
Click here to see answer by rfer(16322)

Question 462685: find the slope of y=-4x+8
Click here to see answer by nerdybill(7384)

Question 462675: find the equation of the line containing points ( 0, -3) and ( -12, -5)
Click here to see answer by rfer(16322)

Question 463032: Which choice could be the equation of a line parallel to the line represented by this equation?
3x− 2y = 6

A. 2x− 3y = 6

B. y=3/2x+4

C. 5x− y = −2

D. y=2/3x-8

Click here to see answer by algebrahouse.com(1659)

Question 463036: Which choice is the equation of a line that passes through the point (�2, 8) and is perpendicular to the line represented by this equation?
5x − 2y = −10

A. 2x− 5y = 26

B. 5x + 2y = 10

C. 2x + 5y = 36

D. −2x + 5y = −13

Click here to see answer by Theo(13342)

Question 463095: Write the slope-intercept equation for the line that passes through (14, -2) and is perpendicular to 7x � 10y = 18
Click here to see answer by alicealc(293)

Question 463181: How do I Graph X + Y > 1?
I have been trying for two days! Please show me.
Click here to see answer by richard1234(7193)

Question 463316: Is [ (1,1), (2,1), (2,2), (1,2)] a function?
Is f(x)= 3x-3 a function?
Evaluate f(a+1) for f defined in f(x) = 3x-3.
What is the domain and range for f in f(x) = 3x-3.

Click here to see answer by robertb(5830)

Question 463367:
Click here to see answer by algebrahouse.com(1659)

Question 463366: 4x-y=3
3x+y=4
Click here to see answer by algebrahouse.com(1659)

Question 463313: Determine the coordinates of the point where the lines pass y= -2x-1 and y=-x+6
Click here to see answer by algebrahouse.com(1659)

Question 463432: 5F+17=147
Click here to see answer by alicealc(293)

Question 463582: I am having problems solving these math problems and was wondering if someone could give me step by step instuction so that I can see where I am going wrong when solving the problem.
x+3=2x-7,2y+1=5(y-4),3-5+2x=x-6,2(x-1)=x+11,and 2x-5x=18
Click here to see answer by checkley79(3341)

Question 463717: Let g and h be two functions defined by:
g(x)= x+4
h(x)= x^2+18x+81
for any real number x.
Find all values of x that are NOT in the domain of the function g divided h (g/h).

Click here to see answer by robertb(5830)

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