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

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Question 901292: Can you please help me. The equation y=20-2/3x gives the temperature y in the degrees Celsius x in hours after the beginning. Graph and find the x and y intercepts. Start does each one represent
Click here to see answer by ewatrrr(24785)

Question 901251: Plot each point:
(4,4),(0.5,-3,(-3,9,-3.2),(0,-1),(0,0),(0,3),(-2,0)
Click here to see answer by Alan3354(69443)

Question 901290: Supply and demand A certain product has supply and
demand functions p = 4q + 5 and p = -2q + 81,
respectively.
(a) If the price is $53, how many units are supplied and
how many are demanded?
(b) Does this give a shortfall or a surplus?
(c) Is the price likely to increase from $53 or decrease
from it?
Click here to see answer by josmiceli(19441)

Question 901312:
I am trying to graph the inequality. I the online math lab I use the graph only allows values +-10. Is there an easy way to solve the equation that does NOT give me a result in fractions or exceed +-10?
Click here to see answer by ewatrrr(24785)

Question 901405: Find the value of k so that the line through the points (-2,3) and (6,k) has y-intercept 6.
Click here to see answer by lwsshak3(11628)

Question 901432: The line passing through the points (a+3,5) and (1,a-2) has slope m=4. Find the value of a.
Click here to see answer by richwmiller(17219)

Question 901510: I'm trying to graph y=(x-2)^3+1 but when I plug in the numbers 0 thru 4, it's not looking long any kind of function
Click here to see answer by josgarithmetic(39617)

Question 901648: Joni Received $25,000 as part of a settlement in a class action lawsuit. She invested some money at 10% and the rest at a 9% simple interest rate. If her total annual income from these two investments was $2,430, how much did she invest at each rate?
Click here to see answer by mananth(16946)

Question 901645: Find the slope of a line perpendicular to the line passing through the given two points. (- 7,6) and (0,4)
Click here to see answer by mananth(16946)

Question 901720: Hi I need help on this question please:
Write an equation of the line containing the given point and perpendicular to the given line. Express your answer in the form y=mx+b.
(3,4) 7x+y=12
I answered: y=1/7x+1
I just want to know if I'm right and If I'm wrong, will you please let me know how to solve the problem. Thanks a lot.
Click here to see answer by ewatrrr(24785)

Question 901746: Write a standard equation for a line that passes through f(4)=2 and f(2)=-1. Then find f(0).
SO, the standard equation is y=mx+b (right?)
Could you please walk me through this problem?
Click here to see answer by ewatrrr(24785)

Question 901847: Plot and label the following points on the grid at the right.
Y (0,-7)
Z (-5,3)
Click here to see answer by Alan3354(69443)

Question 901997: write and solve the inequality.Mike wants to keep the cost per person of his party under $15. The party place charges a flat fee of $250 for an all-inclusive party. let g represent the number of guests, including himself, he can invite
Click here to see answer by josgarithmetic(39617)

Question 901992: Mike wants to keep the cost per person of his party under $15. The party place charges a flat fee of $250 for an all-inclusive party. let g represent the number of guests, including himself, he can invite
Click here to see answer by josgarithmetic(39617)

Question 902094: Every three minutes, 100 feet of paper is used off an 8,000 foot roll to print the pages of a magazine. Write a linear equation that relates the number of feet of paper that remain on the roll and the number of minutes the printing press has been operating.
Click here to see answer by josmiceli(19441)

Question 902237: Solve the absolute value inequality. Express the answer using interval notation.
7 − |2x + 3| ≤ 6
Must graph the solution set. Please explain how to solve. Thank You!
Click here to see answer by stanbon(75887)

Question 902260: Hello,
given f(x)= e^3x and g(x)= 3x -4
find the composition of the functions

(f 0 g)(x)
i put f o g=(e^3x)*(3x-4)
Click here to see answer by ewatrrr(24785)

Question 902201: Need help solving systems in three variable - x+y+z=57,-2x+y+=3,x-z=6
Click here to see answer by Fombitz(32388)

Question 902336: Y-6=-2x
Click here to see answer by jim_thompson5910(35256)

Question 902353: How do I solve w+3 over 2 > 6?
Click here to see answer by jim_thompson5910(35256)

Question 902523: (2,4) (x,8) slope = -2
What is x? And how do you find x?
Click here to see answer by richwmiller(17219)

Question 902555: Determine whether the lines through each pair of points are parallel, perpendicular, or neither. (2,4) and (6,7) (-6,4) and (5,12)
Click here to see answer by ewatrrr(24785)

Question 902626: mx-n=0
Click here to see answer by ewatrrr(24785)

Question 902696: Please help me solve this�
Find f(3) and f(-1)
f(x)=3x
Click here to see answer by Fombitz(32388)

Question 902714: Please help me solve�
let f(x)= -2x+5
f(x)= 5

Click here to see answer by Fombitz(32388)

Question 902727: Please help with linear functions.
Write an equation for a linear function whose graph has the given characteristics.
slope 1/5, passes thru (10,1)
Thanks a lot!
Click here to see answer by Fombitz(32388)

Question 902742: determine the equation with the line with x-intercept -1/3 and y-intercept -1
Click here to see answer by stanbon(75887)

Question 902742: determine the equation with the line with x-intercept -1/3 and y-intercept -1
Click here to see answer by lwsshak3(11628)

Question 902783: Graph the exponential function:
f(x) = -3 + 5
Click here to see answer by Alan3354(69443)

Question 902936: Graph inequality on a plane.
x-y>-3

Click here to see answer by Fombitz(32388)

Question 902902: How do I reflect y = -1/4x + 5 across the x-axis?
Click here to see answer by Fombitz(32388)

Question 903390: Find each function value: f(x) = |2 +x|
a. f(0) b. f(2) c.f(- 2) d. f(-99)

Click here to see answer by tmwilliamlin168(27)

Question 903391: Find each function value: g(x) = x^4 + x
a. g(1) b. g(-2) c.g(0) d. g(10)
Click here to see answer by Fombitz(32388)

Question 903392: Graph each Function:
g(x) = |x| - 2
Click here to see answer by Fombitz(32388)

Question 903648: Solve each system of equations by graphing.

(3x - 6y = 18
(x = 2y + 3
Click here to see answer by josgarithmetic(39617)

Question 903723: Graphing following on the axes labeling at least 2 coordinates
Here are the questions:
http://i.imgur.com/tEQ1WrN.png
Please explain how to solve. Thank you!
Click here to see answer by josgarithmetic(39617)

Question 903824: |3x-1|-3>-3
Click here to see answer by josgarithmetic(39617)

Question 903824: |3x-1|-3>-3
Click here to see answer by MathTherapy(10551)

Question 903757: y=8 I need to graph two points but don't know how
Click here to see answer by richard1234(7193)

Question 904375: Solve each system by substitution. If a system has no solution or infinitely many solutions, so state:
(y = 2x - 9
(x + 3y = 8
Click here to see answer by josgarithmetic(39617)

Question 904379: Use the elimination method to solve each system:
( - 2x + 4y = 12
(2x +4y = 28
Click here to see answer by ewatrrr(24785)

Question 904377: Solve each system by substitution. If a system has no solution or infinitely many solutions, so state:
(y - 1 = 5x
(10x - 2y = 2
Click here to see answer by ewatrrr(24785)

Question 904543: Input the equation of the given line in slope-intercept form.
The line with m = 3 and b = -2
Click here to see answer by ewatrrr(24785)

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