Questions on Algebra: Linear Equations, Graphs, Slope answered by real tutors!

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Question 90621: Help me please I can not understand this. How do you graph f(x)=-x-2.PLEASE HELP Thank you in advance.
Click here to see answer by checkley75(3666)

Question 90757: Find the slope of the line passing through the points (�1, �4) and (�3, 10).
Click here to see answer by praseenakos@yahoo.com(507)

Question 90755: Which of the ordered pairs
(3, 1), (7, 0), (�1, �2), (�25, 8)
are solutions for the equation x + 4y = 7?

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Question 90761: Find the slope and the y-intercept.
y = �9x � 5

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Question 90767: Given f(x) = x2 + x � 8, find f(0).
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Question 90750: Solve. 6(2 � x) = 4x
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Question 90749: Solve. 10x � 4 � 5x = 6 + 3x � 8
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Question 90754: Write the inequality in words. x >_ 2
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Question 90739: Simplify: �(�(�33)).
Click here to see answer by praseenakos@yahoo.com(507)

Question 90741: Simplify: �(�25).
Click here to see answer by praseenakos@yahoo.com(507)

Question 90743: Write the following phrase using symbols.
7 times the sum of a and m

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Question 90747: Divide. -3/0
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Question 90748: Solve. X/8 = �1
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Question 90745: Multiply. (1)(�6)
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Question 90744: Add. 19 + (�20) + 2 + (�19)
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Question 90746: Evaluate b2 � 2bc + c2 if b = 3 and c = �2.
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Question 90862: Hello, could you please help me with this?
Write the equation in slope intercept form.
y+2=-6(x-1)
I appreciate your help and thank you in advance.
Click here to see answer by stanbon(75887)

Question 90861: Hello. Can you please help me with this? I need to complete the given pairs so that each ordered pair satisfies the given equation.
x+2y=1 (0, ) (-2, ) (2, )

I appreciate your help and thank you so much in advance.
Click here to see answer by stanbon(75887)

Question 90911: Write the equation of the line with slope -2 and y-intercept(0,0). Then graph the line.
Click here to see answer by praseenakos@yahoo.com(507)

Question 90910: Write the equation of the line passing through (-3,-5) and (3,0).
Click here to see answer by checkley75(3666)

Question 90926: Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form. A) (-1, 3) and (4, -2); B) (2, -3) and (2, 4).
Thanks for your help.
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90870: Hello. Can you please help me with this? I thank you in advance for all your help.

Determine the equation of the line. Write the answer in standard form using only integers as the coefficients.
The line through (0, 9) that is parallel to the line 3x+5y=15.
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90777: Solve the system by graphing.
x + y = 4
�x + y = 2

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Question 90776: Solve the system by graphing.
x � y = 5
x + y = 3

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Question 90772: SOLVE THE SYSTEM BY ADDING OR SUBTITUTION
3X+6y=0
x=2/3
solve the sysem by adding
5x-4y+-12
x+5y=15
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90770: Find an equation for the line with y-intercept 3 that is perpendicular to the line y=2/3x-4.
Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90768: Solve the system by substitution.
x + y = 12
y = 2x

Solve the system by addition.
5x � 3y = 13
4x � 3y = 11

Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90764: Determine which two equations represent parallel lines.
(a) y = �6x + 2 (b) y = 6x + 2 (c) y = x + 2
(d) y = �6x + 4

Click here to see answer by malakumar_kos@yahoo.com(315)

Question 90756: Graph 3x + 2y = 6.

Graph x = 3.
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Question 90994: Please help with this problem:
Which of the following equations is parallel to y =(2/3)x + 6 and contains the
point (4, -2)?
a. y = (2/3)x + 14
b. y = 3x - 3
c. y = (2/3)x - (14/3)
I know it has to be a. or c. because the slopes are the same as the question, but I can't figure out how to do the rest. Thank you for your help.
Click here to see answer by jim_thompson5910(35256)

Question 90995: What is the equation of the line through points (5,3) and (5, -3)?
Thanks for your help.

Click here to see answer by jim_thompson5910(35256)

Question 90952: I posted this word problem and received an answer - but I am still confused about how to solve it - sorry
Problem:
Your company needs to make both long and short range missiles. Production cannot make more than 50 missiles and no more than 30 long range types. Your company spends $60,000 to make a short range missile and $90,000 to make a long range missile and has no more than 3.6 million to spend. Find the maximum profit your company can make if they receive $400,000 for each short range misssile and $850,000 for each long range missile. how many long range missiles can they make???
I still am so confused about this and don't know the complete answer
I need the following:
constraints
objective function
graph and SOLUTION!!!!!!! PLEASE HELP!!!THANKS
llo
Click here to see answer by kev82(151)

Question 90752: Sam was charged $484 interest for 1 month on a $4400 credit card balance. What was the monthly interest rate?
Click here to see answer by checkley75(3666)

Question 91101: My question is: Why is line x=4 a vertical line?
Thanks.
Click here to see answer by psbhowmick(878)

Question 91101: My question is: Why is line x=4 a vertical line?
Thanks.
Click here to see answer by jim_thompson5910(35256)

Question 91109: I'm not sure what I'm suppose to do.....Do I graph?
??? = Find an equation of the line containing the given pair of points
(4,2) and (12,8) What is the equation of the line? y=

If I graph it,is y=8??? Thanks
Cristina
Click here to see answer by jim_thompson5910(35256)

Question 91145: Can I get help with this one please. Thank you for your help.
What is the equation of the line parallel to 2x-y=3 through the point (1, 4)?
a. y= (1/2)x+2
b. y= 2x+2
c. y= 2x-3
Click here to see answer by checkley71(8403)

Question 91142: Another one I can't figure out:
What is the equation of the line through points (-2, 1) and (2, -6)?
a. y= 3x+(11/3)
b. y= -6x-23
c. y= (-7/4)x - (5/2)
Click here to see answer by checkley71(8403)

Question 91139: Can anyone help me figure this one out showing me the steps? Thank you.
Which of the following equations is parallel to y = -3x + 6 and contains the point (-3, -5)?
a. y= -3x-4
b. y= -3x-14
c. y= (-3/2)x-4
Click here to see answer by jim_thompson5910(35256)

Question 91140: Anyone able to figure this one out? Thanks for your assistance.
What is the equation of the line through points (-3, 2) and (-4, 5)?
a. y= (-3/2)-7
b. y= -3x-7
c. y= -3x+7
Click here to see answer by checkley71(8403)

Question 91213: Solve each system by graphing. y=-2/3x
2x+3y=5
I tried to use the formula y=mx+b. Can you show me line by line instructions so I can get the steps straight in my head. Thanks for your help.
Click here to see answer by stanbon(75887)

Question 91196: puhlezz help,..were given this assignment. How to graph a coordinate plane??
the quetion in our algebra book goes like this:
Plot these points on the same set of axes and connect them in the order given.
30. A(6,1),B(8,4),C(7,0),D(10,-3),E(6,-1),F(3,-5),G(-8,-4),H(-5,-2),I(-9,-2),J(-7,1),K(0,4),L(-1,2),M(6,1)
Help..Need your solutions..
Click here to see answer by jim_thompson5910(35256)

Question 91228: 3x+5y+10=0 Find slope and y-intercept.
Click here to see answer by jim_thompson5910(35256)

Question 91235: y=-x+5 Find slope and y-intercept
Click here to see answer by stanbon(75887)

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