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

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Question 133361: i was wondering on how to solve this equation x^2-9x-14=0. i know how to solve those problems but there are no factors of -14 that add to -9. So your help is needed!
Click here to see answer by stanbon(75887)

Question 133372: please graph
x-3=y

Click here to see answer by jim_thompson5910(35256)

Question 133371: please graph
x-3=y

Click here to see answer by jim_thompson5910(35256)

Question 133451: can you help me graph the equation usin the slope intercept or using the intercept procedure (finding the x and y intercepts by substitutng zero)
4x+y=5
3x-2y=6
3y=5
y=2x+8
Click here to see answer by vleith(2983)

Question 133489: I'm having promblems understanding how to find the info i need to graph this equation.....
I could possibly have the wrong equation.
L x 15 -L ( this is the eqution I came up with)
the original equation is .... The rectangle has a perimeter of 30 meters and a side length of l, A=?
Thank you for your help
Click here to see answer by solver91311(24713)

Question 133579: Anybody please help...
Solve.
2(2x-3) < 6 - the solution set is {x | x < ? }
3(3+4x) -8 > 109 (the arrow is underlined) the solution set is {x | x > ?}
3(2y - 7) > 4(3y +4) Use set builder to describe the solution
{y | y ?? }
Please i have no clue...help
Click here to see answer by jim_thompson5910(35256)

Question 133623: i have a Question that says 5y=2x+4+3y+2x+6 and i do not understand how to get the slope-intercept form of that equation so please tell me what to do because i do not what to fail the test because i dont know how to get the answer and a big hand to the people who maked it where we could send our problems thank a whole bunch
Click here to see answer by vleith(2983)

Question 133736: HELP please...
Solve using the addition principle.
2x + 5 < x+4 (the arrow is underlined) The solution set is {x|x< ?}
Solve using the multiplication principle.
5x>-4 (the arrow is underlined)
Translate to an inequality
A number is at least 14
(the answer is ? ? ?)
Use x as a variable
Click here to see answer by dolly(163)

Question 133880: 3x+6y =12
Click here to see answer by checkley71(8403)

Question 133888: Determine whether the function is symmetric with respect to the y-axis,symmetric with respect to the origin ,or none of these.
f(x)=-5x^3+2x, Given.
f(-x) = -5(-x)^3 + 2(-x)
=5x^3 - 2x which is not equal to f(x). A function y =f(x) is symmetrical about Y axis iff f(x) = f(-x).
Hence f(x) is not a symmetrical function.
Click here to see answer by Ganesha(13)

Question 133916: Again, i need someone to come to the aid of an old lady..Thank you so much
How do you know if a value is a solution for an inequality? How is this different from determining if a value is a solution to an equation? If you replace the equal sign of an equation with an inequality sign, is there ever a time when the same value will be a solution to both the equation and the inequality? Write an inequality and provide a value that may or may not be a solution to the inequality.
Click here to see answer by Earlsdon(6294)

Question 134047: Plot: y=-3/2x-4
Click here to see answer by vleith(2983)

Question 134070: y=-4+4
Click here to see answer by jim_thompson5910(35256)

Question 134098: Help me please.....
Translate to an inequality. Use the variable x
My salary next year will be at least $45000.
a) x > $45000
b) x > $45000 (arrow is underlined)
c) x < $45000
d) $45000 > x (arrow is underlined)
Click here to see answer by vleith(2983)

Question 134198: Draw the graph of y=(3/2)x - 4 using only the slope and the y-intercept.
Click here to see answer by jim_thompson5910(35256)

Question 134196: Graph the inequality: y < (1/2)x + 1
Click here to see answer by jim_thompson5910(35256)

Question 134107: Using the information provided, find the parallel and the perpendicular equation. Graph all three equations on a grid.
1. Y=4x+8 (2,5)
Parallel equation:
Perpendicular equation
2. y=3x-5 (6,9)
Parallel equation:

Perpendicular equation:

3. y=-5x+3 (-2,-3)
parallel equation:
Perpendicular equation:

Click here to see answer by algebrapro18(249)

Question 134222: Could anyone please offer their help on this one? I studied the text and can't figure this out. Thank You.
Compare the graph of the given quadratic function f with the graph of y=x^2.
f(x)=(x-2)^2+3
Thanks again!
Click here to see answer by jim_thompson5910(35256)

Question 134276: Use the graphing tool to graph the line.
Use the intercepts when drawing the line.
If only one intercept is found use it and another point to draw the line.
3x-9=3y
Help please!
Click here to see answer by jim_thompson5910(35256)

Question 134281: find the slope if it exists. There is a pic of a box with tiny squares inside the box and a line with (-5, 3) and (5, -2) do i just subtract the -5 and -2 and add the other 2?
Click here to see answer by jim_thompson5910(35256)

Question 134288: Graph the equation and identify the y intercept
x+5y=10
Would this be 5?
Click here to see answer by jim_thompson5910(35256)

Question 134284: Use the intercepts to graph the equation.
-x+4y=8
Click here to see answer by jim_thompson5910(35256)

Question 134321: I need some help on how they come up with this answer as follows
#33 2,(0,3)
the question is Find the slope and y-intercept for each line that has a slope and y-intercept #33 2x-y+3=0. please explain how they got the above answer.
Thank you so much in advance
Click here to see answer by scott8148(6628)

Question 134363: How can I graph this inequality in the x and y-axis? I need it in only one x and y plane... PLEASE HELP I TRIED IT MORE THAN ONES..PLEASE THE THREE FIST ONES HAS FRACTIONS THEY ARE NOT DIVISION..
y>= -10/7x+10 y is less than or equal to negative ten over 7x plus ten
y>= -9/8x+17/8 y is less tan or equal to negative 9 over 8x plus 17 over 8
y<= -11/7x+18/7 y is greater than or equal to -11 over 7x plus 18 over 7
y<= -2x+3 y is greater than or equal to negative 2x plus 3.
Click here to see answer by stanbon(75887)

Question 134405: 2x-4y=8 please help solve this, I need to graph each linear equation by finding the x & y intercepts
Click here to see answer by jim_thompson5910(35256)

Question 134401: can you help me solve this x=5y, it asks to graph each linear equation by finding x & y intercepts
Click here to see answer by checkley71(8403)

Question 134610: suppose that the width of a rectangle is 2 inches shorter than the length and that the perimeter of the rectangle is 80.
a)set up an equation for the perimeter involving only L, the length of the rectangle.
b)solve this equation algebraically to find the lenghth of the rectangle. Find the width as well.
Click here to see answer by solver91311(24713)

Question 134614: what does this symbols mean < and >
Click here to see answer by vleith(2983)

Question 134614: what does this symbols mean < and >
Click here to see answer by josmiceli(19441)

Question 134614: what does this symbols mean < and >
Click here to see answer by solver91311(24713)

Question 134616: one number is 4 less than 3 times a second number. if 3 more than twice the first number is decreased by twice the second, the result is 11. find both numbers.
Click here to see answer by josmiceli(19441)

Question 134696: the gate of a fence is 8ft. tall and 15ft. wide. how long is the diagonal strip (d) used to brace the gate
Click here to see answer by vleith(2983)

Question 134701: Last question for now please and thank you. Given two points (-1,-5) and (-5,-4) how would I write the standard form of that first using point slope form?
Thanks!
Click here to see answer by algebrapro18(249)

Question 134699: Given two points (-3,-2) and (4,-5) write the slope intercept form of the line. Again I need it solved by point slope form and then given the slope intercept form. I really need help!
y-y1=m(x-x1)
y=3/-7x+b
Click here to see answer by stanbon(75887)

Question 134698: If I'm given a line with a slope of 1/-3 that passes through the point (2, -3)
I need to use point slope form and find the slope intercept form of the line perpendicular to the line at (6,7)
7--3 which becomes 10= 3/1(6-2) but that isn't right I'm so confused please help!
Click here to see answer by stanbon(75887)

Question 134710: solving this is hard for me i just don't get it but here it goes -2x+7<-1 please note the < has a - underneath it did'nt know how to write it but neg -1 is part of expression
Click here to see answer by vleith(2983)

Question 134708: 4/5x+9<12 i'm suppose to solve this problem but how?
Click here to see answer by checkley77(12844)

Question 134662: i dont get how to solve :y=x-3
Click here to see answer by checkley77(12844)

Question 134617: find the dimensions of the rectangle. if its length is twice its width. perimeter is equal to 208.
Click here to see answer by checkley77(12844)

Question 134613: Plot the following points on teh given rectangular corrdinate system by clicking on the given dots and dragging them.
(-4, -1)
(-2, 1)
(-2, 1)
(2, 5)
If you were to connect these points with a line, where would the y-intercept be located? Give ansewer in (x,y) form.
Click here to see answer by checkley77(12844)

Question 134787: Write an equation for the line that has the same slope as 2x-4y=13 and contains the point (6,8)
Click here to see answer by solver91311(24713)

Question 134823: I know I have to set this to Y= in order to find the points for the x and y intercept, but honestly my brain just quit on me. I need to graph the following:
Graph 2x-5y=10.
I have 2x-2x-5y=10-2x
-5y = -2x+12
-5y/-5= -2x+12
---------
-5
My answer was y=2/5x+12
But I know that's not right. The correct answer is y=2x/5+2
that is y= 2x over 5+2
Please help! Ever have one of those days your brain refuses to do anything but be jello?? lol BTW-This is not from a textbook. It is a worksheet.
Click here to see answer by stanbon(75887)

Question 134825: I know I have to set this to Y= in order to find the points for the x and y intercept, but honestly my brain just quit on me. I need to graph the following:
Graph 3x-y=4

The correct answer is y=3x-4
So that makes the slope 3/1 (3 over 1) and the y-intercept = -4 RIGHT???
Please help! Thanks!! This was my last question on my worksheet.
Click here to see answer by stanbon(75887)

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