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

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Question 60625This question is from textbook alegbra concepts and applications
: please help!!!
Suppose y varies inversely as x and y = 5 when x = 20. Find x when y = 2
This question is from textbook alegbra concepts and applications

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Question 60681: Find the equation of the line that has a slope of -4 and passes through the point (2,3)

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Question 60679: Find the slope of the line connecting (3, - 4) and (-5, 2)

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Question 60699: Solve and Graph the equation: y=x+3
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Question 60789This question is from textbook
: Pie Graph
Second day air freight 40%
Truck 45%
Next day air freight 15%
If the company shipped a total of 550 items last month, how many were shipped using second-day air freight?
This question is from textbook

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Question 60780This question is from textbook
: Find the slope of the line through the given points.
(2,1) (2, 7)
This question is from textbook

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Question 60828: When graphing a line that has slope 2/3 and passes through the point (1, -4, ehich of the following is a second point on the line?
A) (3,-1) B) (4-2) C) (-1,1) D) (3,8) E) (2,3)

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Question 60781This question is from textbook
: Find the constant of variation k.
m varies directly with n; m = 144 when n = 8.
This question is from textbook

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Question 60778This question is from textbook
: Find the slope of the line through the following pairs of points.
(-5, -3) and (-5, 2)
Also, I am unable to load "equation editor" on my computer for some reason so how would I show the qraph on a word document?
This question is from textbook

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Question 61049: Determine the equattion of each line. write teh answer in standard form using only intergers as the coefficients.
The line through (-2,4) that is perpendicular to the x-axis

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Question 61070: Can you help me find the value of this problem, f(x)=4x+2, f(-4)
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Question 61069: Can you help me find the value of this problem, f(x)=4x+2, f(-4)
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Question 61117: Graph using the intercept method: 5x – y = 5.
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Question 61116: Graph y = –2x + 1
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Question 61133: Find the zeros of the polynomial function and state the multiplicity of each. Graph the polynomial function. Factor first if the expression is not in factored form.
f(x)=3x squared (x-2)(x+1)

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Question 61149This question is from textbook alegbra concepts and applications
: Please help me solve the following :
solve the system of inequalities x > 2 and y < or equal to x + 3
if no solution write no solution
THANK YOU EVER SO MUCH!
This question is from textbook alegbra concepts and applications

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Question 61150: solve the equation 6(d+6)=4(d-6)+2d
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Question 61113: Graph the solution set of x ³ -9.

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Question 61115: Plot the point with coordinates (0, 2).
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Question 61210: write and equation for the horizantle line that crosses (-7, 5)
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Question 61185: please show me how to get this equation. write the equation of the line which passes through the point(2,1) and is parallelto the line with equation y=5/2x+6 Thank you.
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Question 61242This question is from textbook
: 1>x-3This question is from textbook

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Question 61314This question is from textbook
: Find the equation of the ellipse that has the four points as endpoints of the major and minor axes. (3,0), (-3,0), (0,5), (-5,0).
I tried to use the x^2/a^2 + y^2/b^2 = 1 but I got a lil confused as to which numbers to use for x,a,y,b
This question is from textbook

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Question 61339: Can you explain to me how to solve this system by graphing? The problem is 3x+2y=6 x-y=7
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Question 61341: Can someone explain how I am supposed to solve by substitution with the problems x-y=5 x+2y=7 and 3b+2a=2 -2b+2a=8
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Question 61344: I have another word problem that I need some help with. A vending machine contains nickels and dimes worth $14.50. There are 95 more nickels than dimes. How many of each coin is there? Also there is another word problem that has to do with an airplain flying against the wind. An airplane flew for 4hr. with a 20-km/hr. tail wind. The return flight against the same wind took 5hr. Find the speed of the plane in still air.
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Question 61343: I need help with a couple of word problems. The first one is - Someone invests $50,000 for one year in two different banks with one account yeilding 5% and the other 11% intrest per year. A total of $4300 intrest was earned. Find the ammount deposited in each account. Also There is a problem about solutions of alcohol. Soulution A is 30% alcohol solution B is 75% alcohol. How much of each solution should be used to make 100L. of a solution that is 50% alcohol?
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Question 61343: I need help with a couple of word problems. The first one is - Someone invests $50,000 for one year in two different banks with one account yeilding 5% and the other 11% intrest per year. A total of $4300 intrest was earned. Find the ammount deposited in each account. Also There is a problem about solutions of alcohol. Soulution A is 30% alcohol solution B is 75% alcohol. How much of each solution should be used to make 100L. of a solution that is 50% alcohol?
Click here to see answer by ptaylor(1578) About Me 

Question 61373This question is from textbook
: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(2, -3) (2, 4)
This question is from textbook

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Question 61375This question is from textbook
: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, -3) and is parallel to the line with equation
y = (2/3)x + 1
This question is from textbook

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Question 61377This question is from textbook
: In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will cost $22,000 to produce. Find the equation that relates C and x.This question is from textbook

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Question 61448: How do you find the slope of a line through (1,3) and (-2,5)
Also, how do you find the slope of a parallel line passing (1,5) and (-1,0)

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Question 61448: How do you find the slope of a line through (1,3) and (-2,5)
Also, how do you find the slope of a parallel line passing (1,5) and (-1,0)

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Question 61558This question is from textbook
: Write the equation of the line L satisfying the given geometric conditions.
L has y-intercept (0, 2) and is perpendicular to the line with equation 2x-3y=6.
This question is from textbook

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Question 61342: I need an in depth step by step explaination on how to solve these problems by elimination. 7p+5q=2/8p-9q=17 and 2x+y=13/4x+2y=23
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Question 61611: Could anyone show me how to solve and graph the following equation?
Find the slope and Y intercept by writing the equation in slope intercept form then graph.
3x+y=-2
Thanks for all your help!

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Question 61610: Could someone please help me solve and graph the following equation?
I have tried to solve this on my own and cannot come up with the right answer? Please help
y=2x+6
Thanks alot!

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Question 61616: This one has me stumped. Graph the line that has a slope of -3 and passes through the point P(0,3)
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Question 61639This question is from textbook Algebra 1
: Please help me write an equation of the line that has the given x-intercept and slope:
x-intercept = 2, m = -2/3.
This question is from textbook Algebra 1

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Question 61615: This one has me stumped. Graph the line that has a slope of -3 and passes through the point P(0,3)
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Question 61700This question is from textbook Alegbra Concepts and Applications
: Graph on a number line
x + 3 > -7
THANK YOU
This question is from textbook Alegbra Concepts and Applications

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Question 61708: How do I find the slope and y intercept?
X+3Y=-9

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Question 61699This question is from textbook Alegbra Concepts and Applications
: Graph on a number line
x - 3 > not equal to 1
This question is from textbook Alegbra Concepts and Applications

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Question 61793This question is from textbook
: Write the equation of the line that passes through point (0, –5) with a slope of 9/7.This question is from textbook

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Question 61795This question is from textbook
: Write the equation of the line passing through (2, –1) and (3, –1).This question is from textbook

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