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

Tutors Answer Your Questions about Linear-equations (FREE)

Question 84988: 42 + 2�7 � (5 � 4 � 15)
Click here to see answer by stanbon(75887)

Question 84993: w3 � w8
Click here to see answer by tutorcecilia(2152)

Question 84993: w3 � w8
Click here to see answer by tutor_paul(519)

Question 84994: If p = 0 and q = �3, evaluate 3p2 + 4q.
Click here to see answer by tutorcecilia(2152)

Question 84995: If a = �3 and b = 4, evaluate 5a � 2b.
Click here to see answer by RCupstid(2)

Question 84992: 4xy3 � 2x2y � 5xy2
Click here to see answer by jim_thompson5910(35256)

Question 84992: 4xy3 � 2x2y � 5xy2
Click here to see answer by tutorcecilia(2152)

Question 84892: For the linear equation in standard form 2x+5y=6:
a) Find the slope of this line
b) Find the slope of a line parallel to this line
c) Find the slope of a line perpendicular to this line
d) use your answers to part c) to write the equation of the line which is perpendicular to the given line and passes through the point (-3,-4). Put final equation in standard form. Thanks:)

Click here to see answer by ankor@dixie-net.com(22740)

Question 85098: Solve the system by substitution.
3x � y = �7
x + y = �9

Click here to see answer by nateobot(1)

Question 85128: Rewrite the equation 2x � 3y = �6 as a function of x
Click here to see answer by mala_kumarkos@yahoo.com(10)

Question 85171: Evaluate. | �7 |
Click here to see answer by tutorcecilia(2152)

Question 85173: 5/8-13/8
Click here to see answer by tutorcecilia(2152)

Question 85172: 10/3*1/3=
Click here to see answer by tutorcecilia(2152)

Question 85169: List the like terms in the following group of terms. �3c, �6bc2, 3b2c, �7bc2, 7bc2, 3b2
Click here to see answer by uma(370)

Question 85203: how do i find the value of x and y when given these two equations:
2x+3y=1
and
4x-2y=10
Click here to see answer by checkley75(3666)

Question 85195: How would I graph T=259x + 60?
Click here to see answer by checkley75(3666)

Question 85099: Solve the following system of linear inequalities by graphing.
x � 2y less than or equal to 4
x greater than or equal to 1

Click here to see answer by Lacey020991(49)

Question 85245: What is the equation of the line that contains the points with (x,y) coordinates (-3, 7) and (5, -1)?
Click here to see answer by jim_thompson5910(35256)

Question 85245: What is the equation of the line that contains the points with (x,y) coordinates (-3, 7) and (5, -1)?
Click here to see answer by chitra(359)

Question 85380: Please help me
Given points A(10,4) and B(6,-12), show that P(4,-3) is on the perpendicular bisector of line AB
Click here to see answer by vertciel(183)

Question 85395: Could a Tutor Please help me with this word problem..I don't know where to start??? Age-48 yrs Height 5 feet 7 inches

The volume of air an adult's lungs can hold decreases with age. The equation:
V = 0.104h � 0.018a � 2.69
gives an estimate of the air volume V (in liters) of a person's lungs for someone of height h inches and age a years.
A. Using your own height and weight in the equation above, calculate your estimated lung volume.
B. Calculate 90% of your lung volume.
C. Solve the equation above for the variable a.
D. Calculate how old you will be when your air volume is 90% of its current value. (Use your current height.)
E. Substitute your current height for h in the original equation, and graph the equation to show how air volume changes as age increases.

Click here to see answer by ankor@dixie-net.com(22740)

Question 85487: What are the three forms of straight lines and what are their formular
Click here to see answer by stanbon(75887)

Question 85496: Evaluate b to the power of 2-2bc+c to the power of 2. If b=3 and c=-2.
Solve 10x-4-5x=6+3x-8

Thanks
(two different problems)
Click here to see answer by rajagopalan(174)

Question 85010: Solve the following system of linear inequalities by graphing.
x � 2y less than or equal to 4
x greater than or equal to 1

Click here to see answer by jim_thompson5910(35256)

Question 85518: find the slope and y-intercept of the line 4y-x=12
Click here to see answer by jim_thompson5910(35256)

Question 85522: x=5y
2x+3y=-13
Click here to see answer by checkley75(3666)

Question 85520: How would you put 6=2x-3y in standard form?
Click here to see answer by checkley75(3666)

Question 85520: How would you put 6=2x-3y in standard form?
Click here to see answer by rapaljer(4671)

Question 85645: 3x+4y=12
(0, ), ( ,3/4),( ,0), (8/3, )
Complete the ordered pair so that each is a solution for the given equation.
Click here to see answer by stanbon(75887)

Question 85675: write an equation for a line through the points (3,6) and (-6,-9)
Click here to see answer by Nate(3500)

Question 85677: find the slope of the line 7y-6x +9=0
Click here to see answer by scianci(186)

Question 85676: write an equation for a line with slope = -4 through the point (-2,-1)
Click here to see answer by scianci(186)

Question 85674: write an equation for a line through the point (6,1) that is perpendicular to the line -3y+4x=12
Click here to see answer by scianci(186)

Question 85678: Discuss a real-life situation where a straight-line graph might be applicable and explain why you think this might be true.
Click here to see answer by scianci(186)

Question 85678: Discuss a real-life situation where a straight-line graph might be applicable and explain why you think this might be true.
Click here to see answer by Nate(3500)

Question 85648: Celsius temperature reading can be converted to Fahrenheit readings using the formula F=9/5C+32. What is the Fahrenheit temperature that corresponds to each of the following Celsius temperatures: -10,0,15,100?

Click here to see answer by scianci(186)

Question 85707: Solve the system by addition.
5x � 4y = �5
x � 2y = �7

Click here to see answer by jim_thompson5910(35256)

Question 85707: Solve the system by addition.
5x � 4y = �5
x � 2y = �7

Click here to see answer by checkley75(3666)

Question 85714: Solve the system by graphing.
3x + y = 6
3x � y = 0

Click here to see answer by jim_thompson5910(35256)

Question 85715: Solve the system by graphing.
2x + y = 4
x + y = 3

Click here to see answer by jim_thompson5910(35256)

Question 85716: Solve the system by addition.
2x � 4y = 7
4x + 2y = 9

Click here to see answer by jim_thompson5910(35256)

Question 85718: Solve the system by graphing.
x + y = 3
x + y = �1

Click here to see answer by jim_thompson5910(35256)

Question 85800: A customer purchased a care and financed $16,000. The customer borrowed part of the money from a bank charging 10% annual interest and the rest from a credit union at 8% annual interest. If the total interest for the year was $1390 how much borrowed from the bank and how much was borrowed from the credit uninon?
Click here to see answer by stanbon(75887)

Question 85840: How would you write an equation for a line going through points (3,2) and (-2,4).
Click here to see answer by checkley75(3666)

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14356..14400, 14401..14445, 14446..14490, 14491..14535, 14536..14580, 14581..14625, 14626..14670, 14671..14715, 14716..14760, 14761..14805, 14806..14850, 14851..14895, 14896..14940, 14941..14985, 14986..15030, 15031..15075, 15076..15120, 15121..15165, 15166..15210, 15211..15255, 15256..15300, 15301..15345, 15346..15390, 15391..15435, 15436..15480, 15481..15525, 15526..15570, 15571..15615, 15616..15660, 15661..15705, 15706..15750, 15751..15795, 15796..15840, 15841..15885, 15886..15930, 15931..15975, 15976..16020, 16021..16065, 16066..16110, 16111..16155, 16156..16200, 16201..16245, 16246..16290, 16291..16335, 16336..16380, 16381..16425, 16426..16470, 16471..16515, 16516..16560, 16561..16605, 16606..16650, 16651..16695, 16696..16740, 16741..16785, 16786..16830, 16831..16875, 16876..16920, 16921..16965, 16966..17010, 17011..17055, 17056..17100, 17101..17145, 17146..17190, 17191..17235, 17236..17280, 17281..17325, 17326..17370, 17371..17415, 17416..17460, 17461..17505, 17506..17550, 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