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

Tutors Answer Your Questions about Graphs (FREE)

Question 111512: rewrite each equation as a function of x.
-3x +4y = 11
Click here to see answer by checkley71(8403)

Question 111514: graph the function
f(x)=-2x - 5
Click here to see answer by checkley71(8403)

Question 111515: if f(x)=4x-3, find the following
f(-1)
Click here to see answer by checkley71(8403)

Question 111510: evaluate each function for the value specified
f (x) = x2 - 7x + 10; find (a) f (0), (b) f (5), and (c) f (-2).
Click here to see answer by checkley71(8403)

Question 111528: Please help.
I worked out the equation listed below using the slope and y-intercept for
Slope; -3/4; y-intercept (0,8) (I need to see a graph please)
Please graph the following equation y= (-3/4)x+8
Thanks
JMS

Click here to see answer by stanbon(57352)

Question 111448: A line passing through (11, 3) and (10, y) is parallel to a line with slope –2. What is the value of y?
Click here to see answer by elima(1433)

Question 111440: A home-based company produces both hand-knitted scarves and sweaters. The scarves take 2 hours of labor to produce, and the sweaters take 14 hours. The labor available is limited to 40 hours per week, and the total production capacity is 5 items per week. Write a system of inequalities representing this situation, where x is the number of scarves and y is the number of sweaters. Then graph the system of inequalities.
Click here to see answer by elima(1433)

Question 111505: This is over my head! WOOSH!
Solve the following system of linear inequalities graphically.
3x-y=<6
x=>1
y=<3
Click here to see answer by jim_thompson5910(28595)

Question 111517: if f(x) =5x - 1, find the following
f(a-2)
Click here to see answer by Fombitz(13828)

Question 111465: Please help by solving the follwoing problem so I can compare your answer to my answer to determine if I am correct.
In exercise 8 we have graphed the boundry line for the linear inequality.
Determine the correct half-plane and complete the graph.
Thanks for your help.
JMS
Click here to see answer by elima(1433)

Question 111520: Number problems. You have at least $30 in change in your drawer, consisting of
dimes and quarters. Write an inequality that shows the different number of coins in your drawer.
Click here to see answer by elima(1433)

Question 111670: i need help.
use the graph of y=-x^2+4x+5 to answer the following. all these are under 1 question.
1.using the graph, what are the solution(s)to the equation -x^2+4x+5=0?
2.Does the fuction have a maximum or a minimum?
3.what are the coordinates of the vertex in (x,y)form?
4.what is the equation of the line of symmetry for this graph?
Click here to see answer by Earlsdon(6287)

Question 111709: Determine the range.
17, 16, 10, 15, 20

Click here to see answer by BrittanyM(80)

Question 111710: Find the sum of x for the following set of numbers
2,3,5,6,8,9,11
Click here to see answer by Edwin McCravy(8909)

Question 111708: A line passing through (–6, –5) and (–1, y) is perpendicular to a line with slope . Find the value of y.
Click here to see answer by Edwin McCravy(8909)

Question 111717: A line passing through (–6, –5) and (–1, y) is perpendicular to a line with slope -5/13 . Find the value of y.
Click here to see answer by MathLover1(6634)

Question 111824: Solve the system by graphing.
3x + y = 6
3x – y = 0

Click here to see answer by jim_thompson5910(28595)

Question 111820: Solve the system by graphing.
x + y = 4
–x + y = 2

Click here to see answer by jim_thompson5910(28595)

Question 111819: Solve the system by graphing.
3x + y = –1
9x + 3y = –3

Click here to see answer by jim_thompson5910(28595)

Question 111823: Solve the following system of linear inequalities by graphing.
3x – y < 2
x + y > 2

Click here to see answer by jim_thompson5910(28595)

Question 111821: Solve the following system of linear inequalities by graphing.
x – y < 3
x + 2y > 6

Click here to see answer by jim_thompson5910(28595)

Question 111818: Graph the inequality.
2x + 3y > 6

Click here to see answer by jim_thompson5910(28595)

Question 111816: Graph f(x) = –2x + 2.
Click here to see answer by jim_thompson5910(28595)

Question 111814: Graph the inequality. y > 1
-
Click here to see answer by jim_thompson5910(28595)

Question 111873: Please help.
Graph using the intercept method 2x -5y =10.
Thanks
JMS
Click here to see answer by checkley71(8403)

Question 111886: Please help me with understanding how to solve each system by graphing. For example, I have to solve, then graph the below:
-y -9 = -x (answer y=-1x+9)
-12-6y = x (answer y=6x+2)
I understand how to get the answer if the answer is actually correct, however, I need to understand how I then graph it. Please help.
Click here to see answer by stanbon(57352)

Question 111895: Can you please help me with this equation.
find the midpoint between these points: (2,3) and (8,1)
Click here to see answer by jim_thompson5910(28595)

Question 111896: Can you help me with this problem?
The linear equation y=5 graphs as a horizontal/vertical/diagonal line (choose the correct label and show the work)
Click here to see answer by scott8148(6628)

Question 111926: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)

Click here to see answer by jim_thompson5910(28595)

Question 111801: 4x + y > 4
Click here to see answer by jim_thompson5910(28595)

Question 111977: Graph
x-2y=8
3x-2y=12
Click here to see answer by MathLover1(6634)

Question 111975: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
x+5y=10
-2x-10y=-20
Click here to see answer by stanbon(57352)

Question 111978: graph
3x-6y=9
x-2y=3
Click here to see answer by MathLover1(6634)

Question 111973: Jill has $3.50 in nickels and dimes. If she has 50 coins, how many of each type of coins does she have?
Click here to see answer by stanbon(57352)

Question 111979: Find values for m and b in the following system so that the solution to the system is (-3,4)
5x+7y=b
mx+y=22
Click here to see answer by MathLover1(6634)

Question 111995: Hi I have worked this problem and now need to know if I did it right so that I can graph it.
Can anyone help me.
3x-y< 2
znd x+y>2
the first equation I multiplied by -1
(-1) (3x-y<2)
then I flipped the sign so now I have
-3x +y >-2
I added 3y to both sides
I came up with my slope intercept form/answer
y>3/1x - 2
So my slope is 3/1 and y intercept is (0,-2)
Is that correct?
Then for my other equation x+y > 2
a minus x on both sides and flipped the sign
to come up with
y< - x/1 + 2
Should I have flipped the sign? Or is that only when you divide?
If I did it right then the slope will be (-1/1) and the y intercept will be (0,2)
If this is correct I can now graph. I am getting pretty good at graphing now.
Thank you for your help.
Tracy
Click here to see answer by jim_thompson5910(28595)

Question 111985: 1)graph using the intercept method 2x-5y=10
2)FIND THE SLOPE OF THE LINE PASSING THROUGH THE POINTS (-5,5) AND(-3,5)
Click here to see answer by jim_thompson5910(28595)

Question 111982: Solve each of the following systems by substitution.
4x-12y=5
-x+3y=-1
Click here to see answer by jim_thompson5910(28595)

Question 111981: Solve each of the following systems by substitution.
8x-4y=16
y=2x-4
Click here to see answer by jim_thompson5910(28595)

Question 111980: Solve each of the following systems by substitution.
5x-2y=-5
y-5x=3
Click here to see answer by jim_thompson5910(28595)

Question 111976: Graph
2x-y=4
2x-y=6
Click here to see answer by jim_thompson5910(28595)

Question 111974: Solve each of the following systems by addition. If a unique solution does not exist, state whether the system is inconsistent or dependent.
2x+3y=1
5x+3y=16
Click here to see answer by jim_thompson5910(28595)

Question 112009: Please help.
Plot the point with coordinates (-3, -3)
Thanks
JMS

Click here to see answer by jim_thompson5910(28595)

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