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

Tutors Answer Your Questions about Graphs (FREE)

Question 438611: how do you write an inverse varation equation that relates x and y?
Click here to see answer by richard1234(5390)

Question 438823: what is the x-coordinate of the x-intercept of the function 2/3y=-6x+12?

Click here to see answer by nerdybill(6958)

Question 438837: Could someone please show me how to determine whether the ordered pair is a solution of the inequality?
(-2,4; 8x+y<5
Click here to see answer by nerdybill(6958)

Question 438937: write an equation for the line that passes through (6,2) and is parallel to y=-1/2x+4
i have tried to solve for x but i have a feeling that that is not what my teacher wants because i get a really awful answer and i need to be able to graph it but i couldnt
thank you for your help
sincerly
frusterated algebra student
Click here to see answer by solver91311(16885)

Question 439197: Could someone pleas show me step by step how to graph the system of inequalities?
x+y<6 (All are greater than or equal to and all less than are are
less than or equal to)
2x+y<6
x>0
y>0
Click here to see answer by stanbon(57347)

Question 439281: The equation I am having problems with is:
(5,9); x+8y=9
The equation of the line is y=
Click here to see answer by stanbon(57347)

Question 439299: find the x and y intercepts:
-3x-1=y
Click here to see answer by rwm(914)

Question 439263: Graph the equation and identify the y-intercept x+2y=8

Click here to see answer by jorel1380(2518)

Question 439367: Find the equation of the tangent line for the curve f(x) = x^3 - 2x + 5 at x = 2 (Write equation in y = mx + b form)
Click here to see answer by nerdybill(6958)

Question 439367: Find the equation of the tangent line for the curve f(x) = x^3 - 2x + 5 at x = 2 (Write equation in y = mx + b form)
Click here to see answer by lwsshak3(6505)

Question 439365: What is the slope of the tangent line to the curve y = 2x^4 + x^3 + 6x at x = 1
Click here to see answer by Alan3354(30993)

Question 439356: I am trying to finish up an assignment and am very confused with the next two problems. For the next two problems it advices: Determine the number of real-number solutions to the equation from the given graph. Ofcourse I cannot put the graph in here but it also says 4^x2 + 1 = 4x, given the graph of y = 4x - 4^x2 -1. The next one states: x^2 + x - 11 = 0, given the graph of y = x^2 + x - 11.
I hope you can help without seeing the graphs. Thank you!
Click here to see answer by Alan3354(30993)

Question 439425: How do you graph d=-6.05(2002-1998)+90.01
from 1998 to 2002
Click here to see answer by Alan3354(30993)

Question 439433: I have some homework problems that's asking me to write my solutions in set builder notation. I have the answers to the problems, so that's not what I'm needing help with.
Problem: x - 4/7 ≤ 2
Answer: x ≤ 18/7
Problem: - 2/15 x ≥ 3/16
Answer: x ≤ - 45/32
Problem: -3x – 6 < 5(x – 5)
Answer: x > 19/8
How do I write the solutions in "Set Builder Notation"? Thank you!
Click here to see answer by nerdybill(6958)

Question 439474: Hi, I do not know how to graph this function. Could you give me step by step instructions? i here is the imaginary number:
y = (x-i)(x+i)(x-2i)(x+2i)
Click here to see answer by Gogonati(809)

Question 439489: Could someone please show me step by step how to solve the system by elimination method?
5x+3y=-7
7x-2y=13
Click here to see answer by Gogonati(809)

Question 439575: -4x+2y=8
Click here to see answer by asuar010(324)

Question 439851: which line is perpendicular to the line whose equation is 5y+6=-3x ?
Click here to see answer by Alan3354(30993)

Question 440045: 3x + 6y = 72
what is the y-intercept
what is the x-intercept
Click here to see answer by robertb(4012)

Question 440054: The following function is one to one. Find the inverse of the function and graph the function and its inverse on the same set of axes.
f(x)=2x-1
f^-1(x)=
Click here to see answer by robertb(4012)

Question 440053: graph the equation then identify the y-interecpt
4y+5x=12
Click here to see answer by robertb(4012)

Question 440071: Evaluate the exponential function for three positive values of x, three negative values of x, and at x=0. Show your work. Use the resulting ordered pairs to plot the graph. State the domain and the range of the function. Attach graph as listed and required.
f(x) = e^-x – 1
Click here to see answer by robertb(4012)

Question 440147: Please HELP!!!
Find the equation for line and write Ax+By=C
with slope 2/5 and y-intercept 4
Click here to see answer by rapaljer(4667)

Question 440149: Please I need HELP!!
complete ordered pair solution for following equation
2x+y=6 (1, )
Click here to see answer by richard1234(5390)

Question 440179: Could someone please help me solve the system by graphing then classify the system as consistent or inconsistent and dependent or independent?
8x-5y=20
5y-8x=-20
Click here to see answer by ewatrrr(10682)

Question 440315: what is the slope of this line......2x+4y=8
Click here to see answer by jorel1380(2518)

Question 440494: three more than five times a number is one less than seven times the number. find the number
Click here to see answer by jorel1380(2518)

Question 440722: Could someone please help me to graph the line containing the given pair of points and find the slope?
(6, 3) (-5, -2)
Click here to see answer by mananth(12270)

Question 440785: find and label the vertex and the line of symmetry. graph the function. f(x)=(x+2)^2
Click here to see answer by stanbon(57347)

Question 440776: Could someone help me to find the slope of the line containing the pair of points?
(4,1) (6,-10)
Click here to see answer by ewatrrr(10682)

Question 440737: Could someone please help me to solve the following system of equations and find the ordered pair?
x+3y=6 (1)
x=7-3y (2)
Click here to see answer by ewatrrr(10682)

Question 440400: a homeowner saved $84.45 on a purchase of lawn furntiture that originally sold for $563. what percent of the original price did the homeowner save ?

Click here to see answer by ewatrrr(10682)

Question 440458: solve by either the substitution or the addition-orsubtraction method: 2m=n-3 and 3m=2n+9
Click here to see answer by ewatrrr(10682)

Question 440457: solve by the addition-or-subtraction method: 12a-5b=18 and 15a-5b=30
Click here to see answer by ewatrrr(10682)

Question 440850: y=log4(x-4)+4
Click here to see answer by stanbon(57347)

Question 441012: how do you find the x and y intercepts of
Click here to see answer by unlockmath(1599)

Question 441290: Hello,
Can some help me solve this inequality problem (not needed for a graph just trying to solve)? Thanks in advance.
12x<16x+22
Click here to see answer by josmiceli(9678)

Question 441469: y= x2 + 28x + 196
What is the x-intercept of the graph of the equation
Click here to see answer by stanbon(57347)

Question 441503: Can anyone help with the following problelm?
Determine the vertex of the parabola.
f(x) = x2 - 10x + 26

Click here to see answer by Alan3354(30993)

Question 441503: Can anyone help with the following problelm?
Determine the vertex of the parabola.
f(x) = x2 - 10x + 26

Click here to see answer by stanbon(57347)

Question 441507: What is the equation in slope-intercept form of a line containing the points (1/2,6) and (-1/2,8)?

Click here to see answer by stanbon(57347)

Question 441554: how do you solve 5x-3y=-3
Click here to see answer by rwm(914)

Question 441646: solve this quadratic equation
x^4-5x^2+4=0
Click here to see answer by stanbon(57347)

Question 441664: what are the roots of y=x^2-x-2
Click here to see answer by robertb(4012)

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