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

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Question 145187: For each of the equations (a), (b), and (c) below, indicate which graphs represents the equation. State the domain and range
(1) y = 1 � x Graph: Domain Range

(2) y = |1 � x| Graph: Domain Range

(3) y = 1 � x² Graph: Domain Range

Click here to see answer by Edwin McCravy(20054)

Question 145221: Find the y-intercept and the x-intercept for an equation.
3x - 2y =6
What is the y-intercept?
What is the x-intercept?
I figured the y-intercept would be (0,3), but I am stuck on what is the x-intercept?
Click here to see answer by jim_thompson5910(35256)

Question 145243: Could I please have some help on a systems of equations problem? This one needs to be solved by the Graphing method.
3x + y = -6
x + y = -4
Thank you in advance for all your time,and help. Elle J
Click here to see answer by rapaljer(4671)

Question 145247:

Solve and write interval notation for the solution set 4x+6 less than or equal to 8 or 3x>2
Thank you!!

Click here to see answer by stanbon(75887)

Question 145244: Tutor can you help please?
Write an equation for the line that passes through (3, -2) and (7, 6)
Thank you
Click here to see answer by Alan3354(69443)

Question 145246: Textbook Beecher and Penn
Perform the operation and simplify x^2-2x-15/x^2+x-6*x^2-4/x^2-2x-35
Thanks for your help!
Click here to see answer by stanbon(75887)

Question 145256: Thank you Tutor
Rationalize the denominator 6/sqrt symbol 3+5
Click here to see answer by Alan3354(69443)

Question 145250: Tutors your help is needed...Simplify sq rt symbol 48 + sqrt symbol 75
thank you
Click here to see answer by Alan3354(69443)

Question 145257: tutors..Use the rational zeros theorem to list all possible rational zeros of
2x^3-6x^2+4x-3
Appreciate it tutor
Click here to see answer by vleith(2983)

Question 145290: I'm still having trouble with the graph method.Could someone please show me how to do a couple of my practice problems? Also when you draw the lines on the graph,could you please draw the dots first,so I can understand how you got where the lines go?
1) -x + y = -1
x + y = 3

2) 3x + y = -6
x + y = -4

I want to think you for all your help and time in advance.I think people like you are wonderful,because you help people like me that want to understand math concepts,but are still having some difficulties. Elle J
Click here to see answer by jim_thompson5910(35256)

Question 145253: Textbook Hall
Use the rational zeros theorem to list all possible rational zeros of
2x^3-6x^2+4x-3
Thank you tutors
Click here to see answer by jim_thompson5910(35256)

Question 145269: exercises 14.1 question 14
y=2x^2-1
x^2+2y^2=16
Click here to see answer by Edwin McCravy(20054)

Question 145294: Could someone please help me with a systems of equations problem? This one is using the graphing method to solve it. Also, when drawing the lines on the graph, could you please draw the dots too,because that shows me how to line it up so I can draw the lines right.I have a hard time with this.Thank you in advance for all your help,and time.
3x + y = -6
x + y = -4
Click here to see answer by jim_thompson5910(35256)

Question 145249:
Tutors: Thank You Textbook Hall & Winn
(5a^-4b^5)(-2a^2b^10)

Click here to see answer by checkley77(12844)

Question 145400: determine whether the graphs of the equations are parallel lines, perpendicular lines, or neither.
3x-4y=-5
8x+6y=-5
Click here to see answer by jim_thompson5910(35256)

Question 145488: solve the inequality 4<-z-4<11. Give the result in set notation and graph it.
Click here to see answer by jim_thompson5910(35256)

Question 145489: graph the inequality y<3x+1.
Click here to see answer by jim_thompson5910(35256)

Question 145490: What is the domain and range for the following equations:
y=1-x
y=|1-x|
y=1-x^2

Click here to see answer by jim_thompson5910(35256)

Question 145528: If log a=.250 then what is log a^2?
Click here to see answer by vleith(2983)

Question 145528: If log a=.250 then what is log a^2?
Click here to see answer by scott8148(6628)

Question 145530: if log a =.250 and log b =.644, then what does log (b/a)=?
Click here to see answer by stanbon(75887)

Question 145568: How do you graph linear inequalities with 2 variables?
Click here to see answer by stanbon(75887)

Question 145567: When solving a linear inequality, is it always necessary to solve for the Y? why or why not?
Click here to see answer by stanbon(75887)

Question 145569: How does a person interpret the slope and Y intercept in a real world application?
Click here to see answer by stanbon(75887)

Question 145586: The linear equation y = 3x � 5 graphs as a horizontal/vertical/diagonal line. I am confused by this. How do you know which it is?
Click here to see answer by solver91311(24713)

Question 145550: Hope someone could help me with these problems.
A. Solve: 4( 3x - 3) + 55 = 6x + 1. Show work.

B Find the requested value. Show work.
f(-2) for 2x+1, if x<2
2x, if 2<=x<=4
2-9x, ifx>4

C. The points (-6, 5) and ( 4, 5) are the points at which a particular diameter of a circle intersects the circle. What are the coordinates of the center of the circle? Show work.

D. Find the domain of the function. Show work.
f(x) = 3/x+4

Click here to see answer by stanbon(75887)

Question 145694: What is the slope of the line that runs through the points (0,32)(100,212)?
Click here to see answer by jim_thompson5910(35256)

Question 145710: solve each system grahpically.
x+y=5
x-y=1
Click here to see answer by jim_thompson5910(35256)

Question 145683: Someone could help me with this?
E. Solve the problem.
A rectangular box with volume 468 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.

Click here to see answer by ankor@dixie-net.com(22740)

Question 145722: Please help me solve this equation im struggling in algebra
(this is really slope intercept form of an equation)
[y = 800x + 5]
What is the y-intercept from the data?
What is the x-intercept from the data?

Click here to see answer by rapaljer(4671)

Question 145724: What is a rational zero of this formula and how do you use it to find all zero's of the funtion? 2x^3-x^2-12x+6
Click here to see answer by rapaljer(4671)

Question 145725: I am asked to evaluate without a calculator and I don't know where to begin?
log .0001
Click here to see answer by Earlsdon(6294)

Question 145727: How do you find the vertex, axis of symmetry and graph: f(x) -x^2-6x+3, in the back of my math book it says the vertex is (-3,12) i keep getting (-3,-6) Thanx :)
Click here to see answer by stanbon(75887)

Question 145774: solve by factoring

x^2+7x+10=0
Click here to see answer by jim_thompson5910(35256)

Question 145839: I have the following quadratic equation that I have been trying to graph for like an hour and I am having the toughest time with it. Could someone please help me ASAP???
Thanks!
Maggie
3x2(squared)-x-1 = 0
Could you provide each step so that I may see where I have messed up. I know that I need to have ax2 + bx - c =0, so a=3, b=-1 and c=-1.
I've have plugged these into the -b +/- b2-4ac over 2a???? But for some reason, I get screwed up about mid way through.
Help!!!
Click here to see answer by jim_thompson5910(35256)

Question 145850: Solve the inequality /2x-4/<10. Write the solution in interval notation and graph it.
Click here to see answer by stanbon(75887)

Question 145851: Solve the inequality 1/4y - 1/3 < y + 2. Give the result in set notation and graph it.
Click here to see answer by stanbon(75887)

Question 145849: graph the solution set of x+2y<3.

Click here to see answer by stanbon(75887)

Question 145958: -X^2+4X+5=0
Click here to see answer by 24HoursTutor.com(40)

Question 146011: 4) Use the graph of y=-x^(2)+4x+5 to answer the following:
(Cannot paste graph)

a) Without solving the equation, or factoring, determine the solution(s) to the equation -x^(2)+4+5=0 using only the graph.
b) Does this function have a maximum or a minimum?
c) What are the coordinates of the vertex in (x,y) form?
d) What is the equation of the line of symmetry for this graph?

Click here to see answer by nerdybill(7384)

Question 146018: A rectangular box with volume 468 cubic feet is built with a square base and top. The cost is $1.50 per square foot for the top and the bottom and $2.00 per square foot for the sides. Let x represent the length of a side of the base in feet. Express the cost of the box as a function of x and then graph this function. From the graph find the value of x, to the nearest hundredth of a foot, which will minimize the cost of the box.
Click here to see answer by ankor@dixie-net.com(22740)

Question 146021: f(-2)=2x+1, if x<2
Click here to see answer by nerdybill(7384)

Question 146079: According to Dr's your maximum ideal waist size is directly proportional to your hip size. For a woman with a 40 inch hips, the maximum ideal waist size is 32 inches. What is the maximum ideal waist size for a woman with 35 inch hips?
Click here to see answer by Earlsdon(6294)

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