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

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Question 851431: Solve each system by graphing .
Y=-x+1
Y=-4x-2
Middle school algebra .
On the second equation i divided everything by two so the equation equaled y=-2x-1
This is ONE problem and I have to graph them and write wether they're no solution , one solution , and many infinite solutions ,
Click here to see answer by ankor@dixie-net.com(22740)

Question 851687: Find the value of k so that the line has slope m:
6x+ ky=10 m=-2
Click here to see answer by ewatrrr(24785)

Question 851817: y is equal to four less than the product of two and x
Click here to see answer by ewatrrr(24785)

Question 851772: Solve the inequality 2x - 3 < x + 2 ≤ 3x + 5
You dont need to graph it I just need help solving it, thanks
Click here to see answer by josh_jordan(263)

Question 851818: y=-3x what is the verbal description
Click here to see answer by josh_jordan(263)

Question 851828: How do you sketch y=2x + 3
Click here to see answer by josh_jordan(263)

Question 851956: 2/3x-4y=7 in slope intercept form
Click here to see answer by Alan3354(69443)

Question 852009: What is the solution of y=5/2-5 and y=x-2
Click here to see answer by Seutip(231)

Question 851908: 3x + 5 = y
Click here to see answer by Fombitz(32388)

Question 851907: vertex of y|=3x+2|-4?
Click here to see answer by Fombitz(32388)

Question 851928: Y=x-1
Y=-3X-5
Click here to see answer by Fombitz(32388)

Question 851914: graph

4x-2y (less than) -3 and y= -2|x|+5
Click here to see answer by Fombitz(32388)

Question 852162: Graph the following equation.
Y=- 3/2x-4
Click here to see answer by Fombitz(32388)

Question 852074: 27. Determine graphically the range of values of x for which:
(a)x-1 over x+2 is less than or = 0 (b)(x-6)(x-3) over x+2 is greater or = 0

Click here to see answer by Fombitz(32388)

Question 851450: Compare the following functions to y=x^2.
a) y=2x^2
b) y=(1/2)x^2
I know that one is narrower and one is wider but what is the correct way to state this change?
Click here to see answer by Fombitz(32388)

Question 851511: Please help me solve this equation: Graph the following inequality 3x-2y>6
Click here to see answer by Fombitz(32388)

Question 852500: Explain why are the following lines perpendicular y= -4 over 5x +7 and y= 5 over 4x -12
Click here to see answer by Alan3354(69443)

Question 852644: Why is (6, �2) not a solution to the system of equations given below?
2x-3y=18
5x+3y=3
Click here to see answer by josgarithmetic(39617)

Question 852696: ( these are for notes on homework I don't understand)Draw and graph of y= -4/3x+5 using the slope-intercept method
Click here to see answer by Fombitz(32388)

Question 853021: x+5y=7
-x-7y+-5
Click here to see answer by Alan3354(69443)

Question 853033: Write the equation of the parabola that has vertex (1,2) and y-intercept (0,5)
Click here to see answer by ewatrrr(24785)

Question 853186: what is the slope that passes through the points (1,2)and (3,2)

|

Click here to see answer by Alan3354(69443)

Question 853232: an admission pass for an art museum is $4.50. Write and solve an inequality to find the number of passes (p) that must be sold for the museum to make at least $7200.
Click here to see answer by hovuquocan1997(83)

Question 853222: graph: Y-1.5=0
Click here to see answer by fcabanski(1391)

Question 853276: P is the point (-1,3) . Q is the point (2,-1) .
Find the equation of line PQ.
Click here to see answer by lwsshak3(11628)

Question 853381: A chemist has 5% and 40% solutions of acid available. How many liters of each solution should by mixed to obtain 5 liters of a 20% acid solution?
Totally lost on this one please help
Click here to see answer by stanbon(75887)

Question 853380: solve the following system of equations by graphing
-3x-y = 7
2x + 3y = -7
Please explain step by step so that I can learn
Thank you
Click here to see answer by rothauserc(4718)

Question 853403: solve each system of equations by elimination
Click here to see answer by richwmiller(17219)

Question 853389: The airplane flies 1080 miles against the wind in 4 hours and the return trip takes 3 hours. Find the speed of the airplane with no wind and the speed of the wind.
I know that it is d=r*t
flying against the wind
(A-W) *4= 1080
A-W= 1080/4= 270
flying with the wind
(A+W)* 3= 1080
A+W=1080/4= 360
Is this correct? What do I do next?

Click here to see answer by Alan3354(69443)

Question 853385: solve each system of equations by elimination
3x+5y = -1
2x-4y = 3
please show step by step so that I can learn
Thank you
Click here to see answer by stanbon(75887)

Question 853906: Solve the system by graphing the equations on a graphing calculator, (not the issue), and estimating the point of intersection (this is the issue). I don't know how or what to enter into the calculator to estimate point of intersection. Or even how to figure it out by hand. Are you able to help?
The equations that I have are:
y=0.7x+6
y=0.695x+5
It says that the calculator window is -10,10,1 by -10,10,1. The answer that they get is (-200,-134). I have no clue how they get this answer because the graph to me looks like it is parallel.
Thanks in advance for the help.
Click here to see answer by josgarithmetic(39617)

Question 854017: How do I find the vertex of a simple problem like
y=-|2x-4|
Click here to see answer by fcabanski(1391)

Question 854017: How do I find the vertex of a simple problem like
y=-|2x-4|
Click here to see answer by Vladdroid(91)

Question 854182: i do not understand how x^4-9x^2 equals 20
Click here to see answer by richwmiller(17219)

Question 854182: i do not understand how x^4-9x^2 equals 20
Click here to see answer by josgarithmetic(39617)

Question 854266: Please answer ASAP. What does the exponent on the x coordinate tell in relationship to either the x intercept or y intercept?
Click here to see answer by Fombitz(32388)

Question 854354: what is the graph for x=x

Click here to see answer by Fombitz(32388)

Question 854498: Solve each system of inequalities by graphing. (I don't know how to do the second one, the lines are what I don't understand)
{y<2
{y>/x-2/

Click here to see answer by ewatrrr(24785)

Question 854735: x^2-y=6
Click here to see answer by stanbon(75887)

Question 854735: x^2-y=6
Click here to see answer by ewatrrr(24785)

Question 854763: Plot the graph of the function
f(x)=4-2x
Click here to see answer by Fombitz(32388)

Question 855365: When graphing inequality equations on a graph, how do I know which side to shade? I know it must have something to do with the way the inequality symbol is facing. But is it the side that is greater than/ less than depending on which side the inequality faces?
For example,
If the inequality symbol is facing towards y, and opening towards the equation; do you shade the side of the line that is greater than the points on the line?
Click here to see answer by josgarithmetic(39617)

Question 855521: Write an equation of a line in point-slope form with a slope of -3/4 and passing through the point (1, -5).
Click here to see answer by ewatrrr(24785)

Question 855522: Write an equation of a line passing through the points (-2, -1) and (0, 4). Write the final answer in slope-intercept form.
Click here to see answer by Alan3354(69443)

Question 855522: Write an equation of a line passing through the points (-2, -1) and (0, 4). Write the final answer in slope-intercept form.
Click here to see answer by ewatrrr(24785)

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