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

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Question 42724: Graph the function and state the domain and range.
x=y^2-1
Click here to see answer by fractalier(6550)

Question 42723: Graph the function and state the domain and range.
g(x)=x^2-2x-15

Click here to see answer by fractalier(6550)

Question 42727:
I got this wrong. I need to graph this following equation by first solving for y.
Click here to see answer by Socom491(19)

Question 42755: I can't remember all the steps HELP
Find the distance between the points (-1,2) and (3,-4)
Find the midpoint of the line segment joining the points (-1,2) and (3,-4)
thanks

Click here to see answer by tutorcecilia(2152)

Question 42762: Given f(x)=5x + 7 and g(x)=x^2 + 7, find (g circle f)(x).
Thank you.

Click here to see answer by tutorcecilia(2152)

Question 42757: Graph the function and state the domain and range
x=y^2-1
Can you also show the graph.
Thanks.
Click here to see answer by Nate(3500)

Question 42756: Graph the function and state the domain and range.
g(x)=x^2-2x-15
Can you please also show the graph?
Click here to see answer by Nate(3500)

Question 42869: Isn't it y = - x + 3?

Click here to see answer by fractalier(6550)

Question 42846: Systems of linear equations: Solving by Graphing. I have to find the solution to the System.
The Problem is as follows: 2x-y=4
2x-y=6
this is what I came up with: the solution to the system is 3,2

2x-y=4 2x-y=6
2(0)-4=(-4) 2(0)-6-6
2(2)-0-4 2(3)-0=6

x y x y
0 -4 0 6
2 0 3 0
I tried to cut and past my graph to show the intercept as 3,2
Click here to see answer by fractalier(6550)

Question 42949: Emergency!!!!! Buried and need help in understanding these problems.
(1) Find the x-intercept and y-intercept of the equation 5x -3y = 30.
(2) Find the equation for the line with slope .5 and y-intercept 3.
(3) Find the equation for the line with y-intercept 3 that is perpindicular to the line y = 2/3 x -4. I came up with 3y = 9 -2x am I close on this one?
(4) If f(x) =x^2 + 5, find f(a+h) - f(a). My solution was 2ah+h^2+10 is that correct?
Click here to see answer by fractalier(6550)

Question 42936: Problem 36 I got wrong.. :(
L has y- (intercept (0,-3) and is parallel to the line with equation y =2/3 x + 1.
Click here to see answer by tutorcecilia(2152)

Question 43019: What is the inverse graph of Y = Xsquared - 2? What is the inverse of y = Xsquared + X?
Click here to see answer by stanbon(75887)

Question 42988: Can anyone give me the slope of: 5y-4x+3=0 ???

Thank you
Click here to see answer by Lana06(2)

Question 43033: 3(x+1)^2+3(y-1)^2=6
Click here to see answer by fractalier(6550)

Question 43077: Can anyone help with this?
A line passes through the point (-4,-9) and has a slope of -3 . Write an equation for this line in x,y -coordinates.

Click here to see answer by Nate(3500)

Question 43076: Can anyone graph these 2 equations on one graph so I can see the properly shaded areas? I never have trouble with one equation, but with two I always seem to shade the wrong areas.
y<= 2x+9
y>= -6x-5
Click here to see answer by Nate(3500)

Question 43086: Consider the line y= -1/4x+4
What is the slope of a line parallel to this line?
What is the slope of a line perpendicular to this line?

Click here to see answer by Nate(3500)

Question 43098: Find two consecutive integers such that the sum of 2 times the first integer and 7 times second integer is 88.

Click here to see answer by checkley71(8403)

Question 43089: Consider the line y= -7x-6
What is the slope of a line perpendicular to this line?
What is the slope of a line parallel to this line?

Click here to see answer by checkley71(8403)

Question 43164: Evaluate h(-2/3) if h(x) =[[x-2]]
I get [[-2/3-2]]. Is the next step[[ -22/3]] or [[-1-2]]?
Please help
Thanks
Click here to see answer by AnlytcPhil(1806)

Question 43187: ┌ ┐
│17 2 3 │=A
│11 4-9│
└ ┘
┌ ┐
│10 6-7 │=B
│-4 3 0│
└ ┘
┌ -1┐
│ 2│=C
│ -2│
└ ┘
1. Find A-B.
2. Find BC, if possible.
Thanks

Click here to see answer by Nate(3500)

Question 43186: how do you solve P=LtRT solving for T?
Click here to see answer by stanbon(75887)

Question 43178: Find an equation of the line satisfying the conditions. Write the equation in slope-intercept form.

Through (1, 9); perpendicular to x = 5
Click here to see answer by Nate(3500)

Question 43169: How do I graph this?
3x (greater than sign with a line underneath) 2x - 4

Click here to see answer by Nate(3500)

Question 43166: Describe the system 6x-2y=10 and 9x-3y=8 as consistent and independent, consistent and dependent, or inconsistent.
Please explain
Thanks
Click here to see answer by Nate(3500)

Question 43196: section 7.1 that i got wrong
Write the equation of the line with given slipe and y-intercept. then graph line using the slope and y - intercept

Slope; - 3/4 ; y-intercept: (0,8)
Click here to see answer by fractalier(6550)

Question 43194: Problem 16 that i got wrong
Write the equation of the line with given slipe and y-intercept. then graph line using the slope and y - intercept

slope: -2; y-intercept : (0,4)
Click here to see answer by fractalier(6550)

Question 42868:
Click here to see answer by fractalier(6550)

Question 43268: List all corner points of the graph of the system of inequalities:
x + 2y <= 10
3x + y <= 15
x >= 0
y >= 0

a. (0, 0), (0, 5), (5, 0), (0, 15), (10, 0)
b. (0, 15), (4, 3), (0, 5)
c. (4, 3), (5, 0), (10, 0)
d. (0, 0), (0, 5), (5, 0), (0, 15), (10, 0), (4, 3)
e. None of the others
Click here to see answer by fractalier(6550)

Question 43254: Can someone please help me with this one
3/(x-2) > 2/(x-2)
Click here to see answer by venugopalramana(3286)

Question 43193: Problem 16 that i got wrong
Find the slope of any line perpendicular to the line through points (0,5) and (-3, -4)
Click here to see answer by venugopalramana(3286)

Question 43307: Find the maximum value of
z = 7x + 3y
subject to the contraints
x >= 0
y >= 0
2x + y <= 4
Click here to see answer by fractalier(6550)

Question 43306: Find the maximum value of
z = 7x + 3y
subject to the contraints
x >= 0
y >= 0
2x + y <= 4
Click here to see answer by fractalier(6550)

Question 43305: How would you enter the inequality 2x - 3y >= 0 into the calculator to graph it?

Click here to see answer by stanbon(75887)

Question 43267: Find the maximum value of
z = 7x + 3y
subject to the contraints
x > 0
y > 0
2x + y < 4

a. 14
b. 12
c. 26
d. 18
e. None of the others
Click here to see answer by fractalier(6550)

Question 43269: How would you enter the inequality 2x - 3y >= 0 into the calculator to graph it?
Click here to see answer by josmiceli(19441)

Question 43348: Practice problem six i'm lost on. Write the equation of the line passing through each of the given points with the indicated slope. Give results in slope-intercept form, if possible.
Click here to see answer by fractalier(6550)

Question 43419: Practice problem six i'm lost on. Write the equation of the line passing through each of the given points with the indicated slope. Give results in slope-intercept form, if possible.

(0,5), m = - 3/5

Click here to see answer by tutorcecilia(2152)

Question 43453: Find the slope and the y-intercept of the line.

6x - 9y = -18
Click here to see answer by Earlsdon(6294)

Question 43452: Find an equation of the line passing through the two points. Write the equation in standard form.

(10, 9) and (10, 1)
Click here to see answer by checkley71(8403)

Question 43451: Find an equation of the line satisfying the conditions. Write the equation in slope-intercept form.

Through (1, 9); perpendicular to x = 5
Click here to see answer by Nate(3500)

Question 43530: I can't figure out this problem:
Write the equation of the line passing through (4, 4) and (4, 2).
Choices are:

A) y = 4 C) x = 4
B) y = -2x D) y = x + 4
Click here to see answer by Nate(3500)

Question 43544:

help.......Everybody got this wrong in our practice, including myself.. please help thank you soo much
Click here to see answer by Nate(3500)

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