Questions on Algebra: Coordinate systems, graph plotting, etc answered by real tutors!

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Question 931613: An insect is moving at a speed of 15 ft/min. What is the insect’s speed in yd/h?
(Points : 5)
a. 4 yd/h
b. 300 yd/h
c. 900 yd/h
d. 2700 yd/h
Click here to see answer by Alan3354(69443) About Me 
Question 931618: Which is the equation of the line passing through (0, 6) and (3, 0)?
(Points : 5)
A. Y= - 1/2x +6
B. Y = -1/2X+3
C . Y= -2X+6
D. Y= -2X+3
Click here to see answer by ewatrrr(24785) About Me 
Question 931618: Which is the equation of the line passing through (0, 6) and (3, 0)?
(Points : 5)
A. Y= - 1/2x +6
B. Y = -1/2X+3
C . Y= -2X+6
D. Y= -2X+3
Click here to see answer by MathLover1(20849) About Me 
Question 931616: The number of peaches, p, is three less than half the number of grapes, g. Which expression represents the number of peaches in terms of the number of grapes?
(Points : 5)

A. g/2 -3
b. g-3/2
c. 2g-3
d. 3g-2
Click here to see answer by ewatrrr(24785) About Me 
Question 931616: The number of peaches, p, is three less than half the number of grapes, g. Which expression represents the number of peaches in terms of the number of grapes?
(Points : 5)

A. g/2 -3
b. g-3/2
c. 2g-3
d. 3g-2
Click here to see answer by stanbon(75887) About Me 
Question 931664: solve algebraically
4x^2+y^2=64
x^2+y^2=52
please show steps, thank you
Click here to see answer by ewatrrr(24785) About Me 
Question 931665: solve algebraically
x^2-4y^2=16
2y-x=2
please show steps, thank you
Click here to see answer by ewatrrr(24785) About Me 
Question 931690: What is the solution of the equation?
5x – 31 = 2x + 8
x = _________
Click here to see answer by Alan3354(69443) About Me 
Question 932088: The coordinates of three vertices of a rectangle are (-1,-3), (-1,-6), and (0,-6). What point is the fourth vertex?
Click here to see answer by Fombitz(32388) About Me 
Question 932208: what is the slope of the line that goes through (8,8) and (4,6)
Click here to see answer by TimothyLamb(4379) About Me 
Question 932553: 15. What is the difference of f and g?
f(x) = –20x g(x) = 2x + 9
(Points : 5)
a.(f – g)(x) = 22x + 9
b. (f – g)(x) = –18x + 9
c. (f – g)(x) = –22x + 9
d.(f – g)(x) = –22x – 9
Click here to see answer by Fombitz(32388) About Me 
Question 932545: . Given the linear equation 3y + 4x =12, find the y-intercept.
(Points : 5)
a. - 4/3
b. -4
c. 4/3
d. 4
Click here to see answer by Fombitz(32388) About Me 
Question 932544: An insect is moving at a speed of 15 ft/min. What is the insect’s speed in yd/h?
(Points : 5)
a. 4 yd/h
b. 300 yd/h
c.900 yd/h
d. 2700 yd/h
Click here to see answer by Edwin McCravy(20054) About Me 
Question 932552: Question 14.14. What is the common ratio of the sequence?
-1/20, 1/10, -1/5,2/5,-4/5,...
a. -2
b. -1/2
c. -1/2
d.2




Click here to see answer by ewatrrr(24785) About Me 
Question 932549: 13. In 2000, the population of a city was 82,366. It was expected to decrease at a rate of 0.4% each year.
What is best prediction for the city’s population in 2035?
(Points : 5)
a 71,585
b 68,366
c 19,735
d 11,531
Click here to see answer by ewatrrr(24785) About Me 
Question 932547: What is f(–4) equal to?
f(b) = 5 – 8b
f(–4) = _________
Click here to see answer by Fombitz(32388) About Me 
Question 932543: What is the solution of the equation?
2p + 21 = 6p – 15
p = _________
Click here to see answer by ewatrrr(24785) About Me 
Question 932542: What is the solution of the equation?
5x – 31 = 2x + 8
x = _________
Click here to see answer by ewatrrr(24785) About Me 
Question 932999: Find the standard equations of the circles that have centers on the line 5x – 2y = -21 and are tangent to both coordinate axes.
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Question 933019: (-4, -4); 2x-7y=3
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Question 932930: Find and graph the solution of: x^4 (less than or equal to) 10x^2-9.
I dont even know what steps to take to begin solving this problem. thank you.
Click here to see answer by josgarithmetic(39613) About Me 
Question 933703: what is the answer to y=1/4x x+y=18
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Question 933789: How do I graph 3y=x?
Click here to see answer by stanbon(75887) About Me 
Question 934505: "Tell whether this equation represents a direct variation. If so, identify the constant of variation."
The value of y varies directly with x, and y = 2 when x = -3. Find y when x = 6.
1) I don't know what is implied/what info I can glean from the fact that y varies directly with x.
2) I don't know how to determine the equation/relationship between x and y with one data point.
I'm sorry I can't show any work, but I don't understand what to do with the information given in the problem. Any help you can give about this topic in general and about the specific problem would be appreciated. Thanks.
Click here to see answer by rothauserc(4718) About Me 
Question 935416: Max purchased a box of green tea mints. The nutrition label on the box stated that a serving of three mints contain a total of ten calories. on the axis below graph the function, C, where C(x)represents the number of calories in x mints.
Write a equation that represents C(x)






Click here to see answer by TimothyLamb(4379) About Me 
Question 935900: A home uses 8 gallons of oil each day for heat. If it's oil storage tank is filled to 275 gallons, the function y=275-8x represents the number of gallons remaining in the tank after x days of use. Explain what the x-intercept represents and determine when the tank would be half full.
Click here to see answer by josmiceli(19441) About Me 
Question 936020: Is (3,-1) in the second quadrant in regards to the equation "y=3x-4"?
Click here to see answer by rothauserc(4718) About Me 
Question 936151: Hi on my homework there is a question which says:
on the axes below, draw and label each of the following graphs
example question:
x=2 (and below, there is what I think is a gradient graph thing)
please tell me what they want me to do, and if possible answer the question so I can get an idea.
lots of thanks
A confused student
Click here to see answer by josgarithmetic(39613) About Me 
Question 936455: find the intercepts. then graph. -4x = 16y + 64
Click here to see answer by Fombitz(32388) About Me 
Question 936548: Solve by graphing:
y=x+6, y=-3X+6
Click here to see answer by TimothyLamb(4379) About Me 
Question 936548: Solve by graphing:
y=x+6, y=-3X+6
Click here to see answer by MathLover1(20849) About Me 
Question 936685: A line with a y-intercept of -3 passes through the point (3, -2). It also passes through point (x, -9). What is the x coordinate for that point?
Click here to see answer by TimothyLamb(4379) About Me 
Question 936848: solve this m=4n=+11 | 2x+2y=4
Click here to see answer by Fombitz(32388) About Me 
Question 936989: Please help me with this:
A. Construct a table of values for the equation
Y=x/2 if the replacement set is (-4,0,2).
B. Use your table of values to graph y=x/2 on the grid.
Been stuck on this for two days... Thanks
Click here to see answer by ewatrrr(24785) About Me 
Question 937586: find the slope of the line 6x-2y=18
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Question 937960: What is y when 3x-2y= -6
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Question 938447: The solution of set of |2x-2| >2 is the set of all x values where the graph y = |2x-2|? The line y = 2
A. Is above
B. Is below
C. Intersects
D. Does not intersect
Click here to see answer by josgarithmetic(39613) About Me 
Question 938881: I need help solving this equation :(4,2) m=-5 over 3(x-4)
Click here to see answer by Alan3354(69443) About Me 
Question 939153: What is Triangle ABC has vertices A(2,9), B(0,1), and C(8,5). Find the coordinates of the point of intersection of these lines. Thank you
Click here to see answer by josgarithmetic(39613) About Me 
Question 939356: plot the graph of y=1/3x+3
Click here to see answer by ewatrrr(24785) About Me 
Question 940108: 1. Please help find the point slope form of the equation of the line. slope =-2/5(15,-9)
2. What is the equation of the line in point-slope form
x, intercept=- 1/2 and y - intercept =5
Click here to see answer by MathLover1(20849) About Me 
Question 940444: what does it mean when it asks "Graph the following. USE ONE COORDINATES SYSTEM for each problem?
Click here to see answer by Fombitz(32388) About Me 
Question 941067: Find the missing coordinate if m=-4/5 and given points are (5,9) and (x,13)
Click here to see answer by Fombitz(32388) About Me 
Question 941584: Find the equation of line through (5,3), Parallel to line through (2,1) and (0,-1)
Click here to see answer by TimothyLamb(4379) About Me 
Question 941647: Solve the given system by graphing.
1. x+y=8
x+y=4

Click here to see answer by TimothyLamb(4379) About Me