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

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Question 56192: Adult tickets for a play cost $4 and child tickets cost $1. If there were 23 people at a performance and the theater collected $80 from ticket sales, how many children attended the play?
Click here to see answer by stanbon(57953)

Question 56190: Write the equation of the line with x-intercept (12, 0) and y-intercept (0, 4)
Click here to see answer by checkley71(8403)

Question 56189: Find the slope and y-intercept.
10x – 4y = 24

Click here to see answer by checkley71(8403)

Question 56152: Solve and graph the solution set. 4x + 8 > 3x + 16
>underline under symbol -
Click here to see answer by venugopalramana(3286)

Question 56133: Let g be a linear function. If g(1)=3 and g(-4)=c, find the value of the constant c such that the line will have a slope equal to -1.
Click here to see answer by venugopalramana(3286)

Question 56185: Graph 3x + 2y = 6
Click here to see answer by funmath(2925)

Question 56188: Find the slope of any line perpendicular to the line through points (6, 3) and (7, 7)
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Question 56325: List and verify two intercept points (ordered pairs) that are solutions for the equation 5x – 4y = 20?
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Question 56336: 1.A=P+PRT SOLVE FOR P
2.A TOY ROCKET IS LAUNCHED UPWARD WITH AN INITIAL VELOCITY OF 96 ft/sec. AFTER t sec ITS VELOCITY IS v IS 96-32t ft/sec. a) SOLVE FOR t IN TERMS OF v. b) HOW LONG AFTER LAUNCHING WILL THE ROCKET TAKE TO REACH ITS HIGHEST POINT, THAT IS, WHEN IS THE VELOCITY 0ft/sec?
3.AVERAGE OF THREE NUMBERS: A= a+b+c DIVIDED by 3. SOLVE FOR a
4.ARITHMATIC PROGRESSION: S=a+(n-1)d. SOLVE FOR a
5.dx-ey=f SOLVE FOR y WHEN d=5, X=-1 e=-2, AND f=7

CAN YOU PLEASE SHOW ME HOW TO SOLVE THESE?
Click here to see answer by stanbon(57953)

Question 56343: Solve each of the following systems of linear inequalities graphically.
3x-y<6
x>1
y<3
NOTE each of the < or > signs are underlined, I did not know how to type this. Thanks so much. These are extreme problems!!!!!
McGraw Hill 6th edition. 8.4 # 10
Click here to see answer by aujla(1)

Question 56360: I have tried going through the TI-84 plus manual that came with my calculator, so that I can graph this linear equation: 3x+2y=6. I have not been able to graph linear equations. Can someone please tell me how to enter this equation properly into my calculator? I have solved the problem manually.

Thank you
Click here to see answer by Cintchr(481)

Question 56346: Thanks for your help!!!!!!
Solve the systems by graphing.
McGraw Hill 6th edtion. 8.1 # 12
x-2y=8
3x-2y=12
Click here to see answer by kev82(148)

Question 56342: Solve the system by graphing, addition and substitution methods.
–4x + 7y = –10
x – 5y = 9

Click here to see answer by checkley71(8403)

Question 56415: The homework asks me to "graph each function on a seperate piece of graph paper", and then proceeds to list different equations that will result in step graphs. I am able to solve the equations, but am unsure of how to graph my results. For example:
1. y=[x+3]
I set y=0...
0=x+3
-3=[x]
0+y
And then plugged in a point for x in order to find another ordered pair for the step graph...
y=[2+3]
y=5
x=2

My question is, essentially, how do i graph these equations in a "step graph"??
Click here to see answer by stanbon(57953)

Question 56447: how do you graph f(x) = 3x - 1?
Click here to see answer by funmath(2925)

Question 56502: baking a tray of corn muffins takes 4 c milk and 3 c wheat flour. a try of bran muffins takes 2 c milk and 3 c wheat flour.a baker has 16 c milk and 15 c wheat flour. he makes $3 profit per tray of corn muffins and $2 profit per tray of bran muffins. How many trays of each type of muffins should the baker make to maximize his profit.
Click here to see answer by Edwin McCravy(8999)

Question 56494: 5x - 3y = 15; (5, 2). Please help
Click here to see answer by funmath(2925)

Question 56492: 2x + y = 5; (3, -1)
Please help me with this problem. Thanks
Click here to see answer by funmath(2925)

Question 56508: Can someone help me on this problem?
I need to write the equation of the line with given slope and y-intercept. Then I have to graph each line using the slope and y-intercept.
Slope: 5; y-intercept: (0, -2)
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 56507: Can someone help me with this problem? I am lost!
I need to write the equation of the line with given slope and y-intercept. Then I need to graph each line using the slope and y-intercept.
Slope: -2; y-intercept: (0, 4)
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 56506: Can someone help me on this problem?
I need to find the slope and y-intercept of the line represented by the following equation:
2x - 3y = 6
Thanks,
Sher
Click here to see answer by funmath(2925)

Question 56517: 8.3 #16
Solve by substitution
Mcgraw Hill 6th editon,
Thank you for your time!!
5x-2y= -5
y-5x=3
Click here to see answer by abauer41(3)

Question 56491: 2x - (4x + 3) < 6x + 3(x + 4)
Click here to see answer by abauer41(3)

Question 56633: Can someone help me on this problem?
I need to write the equation of the line passing through each pairs of points. I need to write the result in slope-intercept form, where possible.
(2, -3) and (2, 4)
Thanks, Ashley
Click here to see answer by funmath(2925)

Question 56642: Find an equation of a line passing through (-1,1) and perpendicular to the line whose equation is given by 3x-2y=1.
Click here to see answer by funmath(2925)

Question 56643: Find an equation of a line passing through (-1,0) and parallel to the line whose equation is given by x-y=1.
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Question 56632: 3(x+6)=5(x-4)
Click here to see answer by rchill(405)

Question 56667: Can someone help me on this problem?
I need to write the equation of the line with given slope and y-intercept. Then graph each line using the slope and y-intercept.
Slope: - 3/4; y-intercept: (0, 8)
Thank you,
Ashley
Click here to see answer by funmath(2925)

Question 56668: Can someone please help me with this problem?
I need to match the graph (problem #30) to one of the following equations and also problem # 32:
(a) y = 2x, (b) y = x + 1, (c) y = -x + 3, (d) y = 2x + 1, (e) y = -3x - 2, (f) y = 2/3x + 1, (g) y = -3/4x + 1, (H) y = - 4x

Thanks,
Ashley
Click here to see answer by funmath(2925)

Question 56670: Can someone help me on this problem?
Driving down a mountain, Tom finds that he has descended 1800 ft. in elevation by the time he is 3.25 mi horizontally away from the top of the mountain. I need to find the slope of his descent to the nearest hundredth.
Thank you,
Ashley
Click here to see answer by funmath(2925)

Question 56671: Can someone help me on this problem?
I need to write the equation of the line passing through the given pairs of points. I need to write the result in slope-intercept form, where possible:
(2, -3) and (2, 4)
Thanks,
Ashley
Click here to see answer by funmath(2925)

Question 56682: Solve the system by substitution.
x+y=12
y=2x
Click here to see answer by funmath(2925)

Question 56651: please graph using the intercept method x+3y=6
Click here to see answer by funmath(2925)

Question 56581: Generate a graph for the following function g(x)=-4x^2 + 16x-19
Find the vertex and x and y intercepts for the graph, show all work
Click here to see answer by stanbon(57953)

Question 56715: 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 funmath(2925)

Question 56714: Find the slope of the line through the points A(-1,6) and B(5,2)
Click here to see answer by funmath(2925)

Question 56713: Find an equation for the line with slope 1/2 and the y-intercept 3.
Click here to see answer by funmath(2925)

Question 56711: Find the x-intercept and y-intercept of the equation 5x - 3y = 30.
Click here to see answer by funmath(2925)

Question 56761: 2. Determine which two equations represent parallel lines.
(a) y = –4x + 2 (b) y = 4x + 2 (c) y = x + 2
(d) y = –4x + 7
A) (a) and (b)
B) (b) and (c)
C) (a) and (c)
D) (a) and (d)
no book Thanks so very much for your help!! I cannot tell you how much it means!!

Click here to see answer by stanbon(57953)

Question 56770: 12. Find the slope.
7x + 3y = –22
Thank you very much for all you do to help those who struggle!
Click here to see answer by stanbon(57953)

Question 56773: 15. Find the slope and the y-intercept.
y = x
Thank you very much for all you do to help those who struggle!

Click here to see answer by stanbon(57953)

Question 56773: 15. Find the slope and the y-intercept.
y = x
Thank you very much for all you do to help those who struggle!

Click here to see answer by tutorcecilia(2152)

Question 56784: I am using the intercept method and I do not know the beginning this is the problem and this is what I got
2x+3y=6
3x=6-2x subtract
6-2 add from there I am lost please help me get the concept Thank you
Click here to see answer by stanbon(57953)

Question 56774: 16. Are the following lines parallel, perpendicular, or neither?
L1 through (–4, –7) and (1, 3)
L2 through (2, 6) and (4, 10)
A) Parallel
B) Perpendicular
C) Neither
Thanks for all your help!!
Click here to see answer by Nate(3500)

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