Questions on Algebra: Graphs, graphing equations and inequalities answered by real tutors!

Tutors Answer Your Questions about Graphs (FREE)

Question 526437: Graph the line. y=x-8
Click here to see answer by oberobic(2304)

Question 526442: write an equation of the line containing the given pointand parallel to the given line. express your answer in the form y=mx+b
(8,9); x+2y=9
Click here to see answer by Maths68(1474)

Question 526502: The graph of f(x) is given. What is f(-3)?
a. 0
b. 1
c. 2
d. -2
e. -12
f. -14

Click here to see answer by nerdybill(7384)

Question 526623: Find an equation of the line having the given slope and containing the given point.
m=8/9,(5,-5).. I can solve this problem up to the last step where i need help! Here is how I am solving it.
Substitute values for m,x1,, and y1 into the point slope equation.
y-(-5)=(8/9)(x-5)
=y-(-5)=8/9x - 40/9..
(here is where i get stuck)
*finaly subtract 5 from both sides*
y=8/9x-85/9
how do I get 85/9 as an answe when i subtract 5 from both sides i get 35/9
Click here to see answer by jim_thompson5910(35256)

Question 526911: please help me solve this equation:
Click here to see answer by Alan3354(69443)

Question 526923: how to solve this equation:

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Click here to see answer by KMST(5328)

Question 527110: Find the slope of each line from the given equation.
y= -12x + 5
Click here to see answer by rfer(16322)

Question 527100: What is the slope of the line that goes through the given points?
(0,3) and (-9,1)
Click here to see answer by rfer(16322)

Question 527113: Find the slope of each line from the given equation.
4x-7y=11
Click here to see answer by jim_thompson5910(35256)

Question 527116: Find the slope of each line from the given equation.
y + 5=0
Click here to see answer by jim_thompson5910(35256)

Question 527116: Find the slope of each line from the given equation.
y + 5=0
Click here to see answer by oberobic(2304)

Question 527118: Find the slope of each line from the given equation.
x = -8y
Click here to see answer by stanbon(75887)

Question 527118: Find the slope of each line from the given equation.
x = -8y
Click here to see answer by oberobic(2304)

Question 527119: Consider the demand equation below, where x represents the quantity demanded in units of a thousand and p is the unit price in dollars.
p = -x2 + 11
(a) Determine the quantity demanded when the unit price is set at p = 7.

units
Click here to see answer by rfer(16322)

Question 527561: I need help in graphing the given lenear inequalities
y < 5 - 2X

Click here to see answer by MathLover1(20849)

Question 527576: Determine using substitution or addition.
2a+b-2c=5
3b+4c=1
3c=-6
Click here to see answer by solver91311(24713)

Question 527574: I need help in graphing the given lenear inequalities
y > -2x
Click here to see answer by solver91311(24713)

Question 527629: how do you solve the following equation for V?
u=20v?
Click here to see answer by stanbon(75887)

Question 527629: how do you solve the following equation for V?
u=20v?
Click here to see answer by solver91311(24713)

Question 527720: write the standard form of the equation of the line through the pair of points (9,5) and (-8,10) write the equation using only integer coefficients.
Click here to see answer by josmiceli(19441)

Question 527884: what is the rate of change if tommy drives 65 miles per hour?
Click here to see answer by rfer(16322)

Question 527897: how do you graph the equation or inequality of y=-x+5
Click here to see answer by KMST(5328)

Question 527912: how do you graph the equation or inequality of y=3x+2
Click here to see answer by jim_thompson5910(35256)

Question 527948: I am trying to write an equation of the line that passes through these points (-1,3) and (2,-0.5). I am having a hard time finding the slope and solving the equation y=mx+b. I think that the slope is -3.5/3, but I can't figure it out!! Please help me!!!

Click here to see answer by oberobic(2304)

Question 527988: Give the equation of the x-axis
Click here to see answer by jim_thompson5910(35256)

Question 527988: Give the equation of the x-axis
Click here to see answer by Alan3354(69443)

Question 527990: find the slope of line
through(-2,3)and(5,-6)
Click here to see answer by jim_thompson5910(35256)

Question 527997: find the slope of
(-2,0)and (3,3)
Click here to see answer by jim_thompson5910(35256)

Question 527996: the slope of a line parallel to the graph of 2x+3y=14
Click here to see answer by jim_thompson5910(35256)

Question 528467: 1/2[3x+3]is greater than or equal to 12
Click here to see answer by unlockmath(1688)

Question 528503: -3+x=-x+5
Click here to see answer by jim_thompson5910(35256)

Question 528503: -3+x=-x+5
Click here to see answer by oberobic(2304)

Question 528563: I am not sure what I am suppose to be doing with this problem and could use some help.
If s varies inversely as x and s=4 when x=-4 then find s when x=2.
Click here to see answer by lmeeks54(111)

Question 528567: I need some help with this please.
write a formula that expresses the relationship P varies jointly as x and y and P=8 when x=3 and y=-10
Click here to see answer by ankor@dixie-net.com(22740)

Question 528615: -3x+5y=25
Click here to see answer by oberobic(2304)

Question 528586: I'm trying to help my 8th grade daughter with her homework. Here's the first question:
-4>y+2>-10
She can figure out questions with and or "or" but can't figure this one out. I sure can't either.
Click here to see answer by scott8148(6628)

Question 528670: graph the linear inequality
y>-x+4
-
Click here to see answer by solver91311(24713)

Question 528977: Write the equation in the form y= mx+b
m=0 b= -9
Click here to see answer by Alan3354(69443)

Question 529297: okay so tomorrow i have a math test and two questions are over maximizing an objective function, and there wroth 20 points but the problem is that my teacher did not teach me how to do it. so i need your help because i have never even heard about this before.
Click here to see answer by KMST(5328)

Question 529535: I could use some help with this problem please.Determine f^-1 for
f(x)=∛(x+5. It's cubed if it is too small to see. Thank you
Click here to see answer by MathLover1(20849)

Question 529629: How do I solve this system of linear equations? This is the problem: x-4=y, y/2 plus 5=2x Just to let you know I need a high level of explanation, or a lot of detail in your explanation. Please dont assume I know a lot about this subject. THANKS!!! Crystal
Click here to see answer by scott8148(6628)

Question 529742: Is the line through points P(�8, �10) and Q(�5, �12) perpendicular to the line through points R(9, �6) and S(17, �5)? Explain.
Click here to see answer by solver91311(24713)

Question 529770: How do you do a question like. "y=mx+b' when you don't have b?
Click here to see answer by lwsshak3(11628)

Question 529770: How do you do a question like. "y=mx+b' when you don't have b?
Click here to see answer by richard1234(7193)

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