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

Tutors Answer Your Questions about Graphs (FREE)

Question 84777: I have a question that states: Find the center and radius of the circle with the given equation: (x-4)^2+(y+8)^2=9. How do I work this?
Click here to see answer by Edwin McCravy(20054)

Question 84787: I have real troubles with these. Please help.
Graph the inequality.
y is greater than or equal to 3x

Click here to see answer by bucky(2189)

Question 84786: I have real troubles with these. Please help.
Graph the inequality.
x < �2

Click here to see answer by bucky(2189)

Question 84774: I have a question that I cannot work out. It is: Find the possible values of y if the points (-7,-9) and (-10, y) are a distance d=squareroot 178 apart. Hod do I do this?
Click here to see answer by ankor@dixie-net.com(22740)

Question 84910: How do you solve this graph?
Find the vertex and the axis of symmetry of this line
y=xsquare-2x+5

Click here to see answer by jim_thompson5910(35256)

Question 84916: I have a question that states: state whether the function has a minimum or a maximum value and find the value. f(x)=5x^2+20x
Click here to see answer by Nate(3500)

Question 84915: I have a question that states find the domain and range of the function f(x)=-4x^2+2. How do I do this?
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 84914: I have a question that states: Find the equation in standard form. Then graph the equation. y=x^2+2x-3. How do I do this?
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 85020: Solve the following system of linear inequalities by graphing.
3x � y < 2
x + y > 2

Click here to see answer by stanbon(75887)

Question 85016: 1. Evaluate F(x)=3x^5 -5x^3 +2x^2 +6 for: 2x
2. Find the equation for the following line: A line with a slope of zero that passes through (2,-1)
3. Find the equation for the following line: A line with an undefined slope that passes through (-1,2)

Click here to see answer by stanbon(75887)

Question 85023: Solve the system by graphing.
3x + y = �1
9x + 3y = �3

Click here to see answer by tutorcecilia(2152)

Question 85022: Solve the system by addition or substitution.
3x � 4y = 8
6x � 2y = 10

Click here to see answer by bucky(2189)

Question 85022: Solve the system by addition or substitution.
3x � 4y = 8
6x � 2y = 10

Click here to see answer by jim_thompson5910(35256)

Question 84966: I have a question that staes: find the distance between the two plotted points (2, 5) and (7,6)
Click here to see answer by tutorcecilia(2152)

Question 84967: I have a question that states: find the midpoint of segment CD with points (-1,-3) and (3,-1)
Click here to see answer by tutorcecilia(2152)

Question 85070: Graph by first solving for y.
4x � 3y = 6

Click here to see answer by jim_thompson5910(35256)

Question 85067: Solve the system by graphing.
x + y = 4
�x + y = 2

Click here to see answer by jim_thompson5910(35256)

Question 85069: Write the equation of the line with slope 4 and y-intercept (0, �5). Then graph the line
Click here to see answer by jim_thompson5910(35256)

Question 85066: Solve the system by graphing.
3x � y = 1
3x � y = 2

Click here to see answer by jim_thompson5910(35256)

Question 85065: Solve the system by graphing.
x � y = �3
x � y = 4

Click here to see answer by jim_thompson5910(35256)

Question 85071: Graph x = �3.
Click here to see answer by jim_thompson5910(35256)

Question 85102: I have a question that states: find the graph of f(x)=3(x-4)^2+2. How do I do this problem? I have tried and can't get it.
Click here to see answer by stanbon(75887)

Question 85097: I have a question that states:
a) use the transformations on the graph of y=x^2 to determine the graph of y=(x+5)^2-9.
b) using the graph of f(x)=x^2 as a guide, graph the function g(x)=(x+4)^2+2
Click here to see answer by stanbon(75887)

Question 85081: Anyone know about interval notation and graphing it
-1 < 3-2x< 11 there is a line under the sign after -1.
_
Click here to see answer by stanbon(75887)

Question 85115: Solve the system by graphing.
3x + y = 6
3x � y = 0

Click here to see answer by checkley75(3666)

Question 85096: I have a question that states: use the graph of f(x)=/x/ to find the graph of f(x)=/x+4/-3.
Click here to see answer by bucky(2189)

Question 85190: Find the equation for each of the following lines and graph it. (You can put them all on the same graph if you want but label them)
a. A line with a slope of -2 that goes through the point (1,-3)
b. A line with a slope of zero that passes through (2,-1)
c. A line with an undefined slope that passes through (-1,2)

Click here to see answer by uma(370)

Question 85192: A line has the equation 2x � y = 3
a. Find the equation of a line passing through the point (1,-2)
that is parallel to this line.
b. Find the equation of a line passing through the point (1,-2) perpendicular to this line.
c. Graph all three lines on the same graph.

Click here to see answer by jim_thompson5910(35256)

Question 85163: 7x+1/6+17=x
Click here to see answer by checkley75(3666)

Question 85209: In most businesses, increasing prices of products can negatively impact the number of customers. A bus company in a small town has an average number of riders of 800 per day. The bus company charges $2.25 for a ride. They conducted a survey of their customers and found that they will lose approximately 40 customers per day for each $.25 increase in fare.
Let the number of riders be a function of the fare charged. Graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), and find the slope of the graph.
Click here to see answer by josmiceli(19441)

Question 85243: Find the slope and y-intercept.
5x � 7y = 70

Click here to see answer by Lacey020991(49)

Question 85289: The total revenue of Retailers,Inc. increased according to the following table:
Year x since 1997 Total Revenue, R (millions $)
1997, x = 0 $22

1998, x = 1 $23

1999, x = 2 $27

2000, x = 3 $31

2001, x = 4 $33

2002, x = 5 $38

Use the points (1,23) and (5,38) to find the equation of the function that fits this data.
Now estimate the total revenue in the year 2008.

Click here to see answer by stanbon(75887)

Question 85373: Solve by using addition or substitution. If solution isn't unique then state whether the system is dependent or inconsistent.
10x+2y=7
y=-5x+3

In a town election, the winning candidate had 220 more votes than the loser. If 810 votes were cast in all, how many votes did each candidate recieve?

The length of a rectangle is 2in. more than twice it's width. If the perimeter of the rectangle is 34 in., find the dimension of the rectangle.
Click here to see answer by praseenakos@yahoo.com(507)

Question 85393: When using the quadratic formula to solve a quadratic equation ax2 + bx + c = 0, the discriminant is b2 - 4ac. This discriminant can be positive, zero, or negative. (When the discriminant is negative, then we have the square root of a negative number. This is called an imaginary number, sqrt(-1) = i. )
� Explain what the value of the discriminant means to the graph of y = ax2 + bx + c. Hint: Choose values of a, b and c to create a particular discriminant. Then, graph the corresponding equation.

Click here to see answer by Nate(3500)

Question 85362: I have a question that states: use transformations on the graph of y=x^2 to graph y=(x+3)^2-3. What are the steps to this and what do I do for the graph?
Click here to see answer by scianci(186)

Question 85287: Determine if each of the following is a relation or a function. Tell me why and give me the domain and range of each one.
a. (0,1) (4,1) (6,2) (2,0)
b. (1,2) (3,1) (1,3) (2,0)
c. y = 5
d. y = 6 _
2x -1
e. note that these curves extend to infinity at each

Click here to see answer by scianci(186)

Question 85358: I have a question that states: Find the vertex of the graph of the function. What are the steps to figure this problem out? The book is so hard to understand.
Click here to see answer by stanbon(75887)

Question 85359: I have a question that states: find the standard form of the function f(x)=x^2-4x+6. Help me please!?!
Click here to see answer by stanbon(75887)

Question 85438: -3(6y-4)-y=-4(y-3)
Click here to see answer by praseenakos@yahoo.com(507)

Question 85447: Solve and graph the equation.
3x-y<6
x>1
y<3
Thanks for the help!
Click here to see answer by scianci(186)

Question 85445: In a town election, the winning candidate had 220 more votes than the loser. If the 810 votes were cast in all, how many votes did each candidate recieve?
The lenght of a rectangle is 2 in. more than twice its width. If the perimeter of the rectangle is 34 in., find the dimensions of the rectangle.

Can I possibily get some help, or get these word problems explained to me? Thank you for the help!
Click here to see answer by scianci(186)

Question 85193: The total revenue of Retailers,Inc. increased according to the following table:
Year x since 1997 Total Revenue, R (millions $)
1997, x = 0 $22

1998, x = 1 $23

1999, x = 2 $27

2000, x = 3 $31

2001, x = 4 $33

2002, x = 5 $38

Use the points (1,23) and (5,38) to find the equation of the function that fits this data.
Now estimate the total revenue in the year 2008.

Click here to see answer by scianci(186)

Question 85075: how must we shift the graph of f(x)=4(x+8)^2 to obtain the graph of g(x)=4(x+13)^2
Click here to see answer by scianci(186)

Question 85073: Solve Graphically (x+3)^2-4 Greater than 0
Click here to see answer by scianci(186)

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