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Tutors Answer Your Questions about Graphs (FREE)
Question 72888This question is from textbook
: The Speed boat could travel at 5 times the speed of the current. Thus, it could travel 300 miles downstream in 2 hours more than it took to travel 150 miles upriver.What was the speed of the boat in still water?This question is from textbook
Click here to see answer by checkley75(3666)   |
Question 72976: GRAPH THE LINE: Y-5=3X. YOU MUST SHOW A TABLE WITH AT LEAST THREE X-Y VALUES. LABEL TH AXES AND SOME "HASH" MARKS.
I GOT THESE BUT I STILL DON'T UNDERSTAND HOW TO DO THIS?
Y=5+3X
X=(Y-5)/3
THANKS TO WHOEVER HELPS ME :)
Click here to see answer by bucky(1732) |
Question 73008: I am new to the whole algebra topic, can someone explain this too me... thank you any assistance would be greatly appreciated! :-)
x -2 -1 0 1 2
y .25 .5 1 2 4
Given the table above, graph the function, identify the graph of the function (line, parabola, hyperbola, or exponential), explain your choice, and give the domain and range as shown in the graph, and also the domain and range of the entire function.
Graph
Graph Type
Explanation
Domain
Range
Click here to see answer by stanbon(26297) |
Question 72995: I thought i got lucky and found this on your question list. I was wrong so here goes
a figure shows a graph of g(x) = e^x and a second exponential function f(x). Identify the second function. f(x)=2+e^-x
choices:
f(x) =2-e^x
f(x) =-2 +e^x
f(x)= 2 + e^x
thanks you guys
Click here to see answer by jim_thompson5910(13794) |
Question 72974: A couple has two children. At least one of them is male. What is the probability that one child is female, assuming the probability of having either sex is equal?A couple has two children. At least one of them is male. What is the probability that one child is female, assuming the probability of having either sex is equal?
THANK YOU TO WHOEVER SOLVES THIS FOR ME :)
Click here to see answer by stanbon(26297) |
Question 72919:
John has 300 feet of lumber to frame a rectangular patio (the perimeter of a rectangle is 2 times length plus 2 times width). He wants to maximize the area of his patio (area of a rectangle is length times width). What should the dimensions of the patio be, and show how the maximum area of the patio is calculated from the algebraic equation.
Show clearly the algebraic steps which prove your dimensions are the maximum area which can be obtained. Use the vertex formula to find the maximum area.
Click here to see answer by checkley75(3666) |
Question 73027: When it says 'vertically stretch by a factor of.. , or vertically compress by a factor of.. , 'horizontally stretch by a factor of.. , or horizontally compress by a factor of.. ' is there some sort of calculation to use this factor and find additional points on the graph? I'm in section 3.1, starting with problem number 19. I understand the transformation processes of graphing these equations, I'm mainly looking for a way to know how to use that 'stretch/compress' factor to find additional points on the graph. Thank you for your help.
Click here to see answer by stanbon(26297) |
Question 72950: I need some serious help. I need to know how to solve some equations. I have a test coming up and I am STUCK!
For the function defined by f(x) =2-x^2, 0 (greater than,or equalto) x, use a sketch to help find formula for f-1(x).
Someone please show me how to do this.
Click here to see answer by stanbon(26297) |
Question 73028: i am given some data and to construct a scatter plot. It then ask me to find a linear model that approximates the data. I am suppose to copy the answer from my TI-83 calculator and I borrowed the calculator, so I do not have a manual. Can you tell me which keys I use to solve my equation?
Click here to see answer by stanbon(26297) |
Question 72917: Suppose a baseball is shot up from the ground straight up with an initial velocity of 64 feet per second. A function can be created by expressing distance above the ground, s, as a function of time, t. This function is s = -16t2 + v0t + s0
•16 represents 1/2g, the gravitational pull due to gravity (measured in feet per second2).
•v0 is the initial velocity (how hard do you throw the object, measured in feet per second).
•s0 is the initial distance above ground (in feet). If you are standing on the ground, then s0 = 0.
a)What is the function that describes this problem?
Answer:
b) The ball will be how high above the ground after 1 second?
Answer:
Show work in this space.
c) How long will it take to hit the ground?
Answer:
Show work in this space.
d) What is the maximum height of the ball? What time will the maximum height be attained?
Answer:
Show work in this space.
Click here to see answer by bucky(1732) |
Question 73049: The Amount A in an account after t years from an initial principle P invested at an annual rate r compounded continuously is given by A = Pert where r is expressed as a decimal. Solve this formula for t in terms of A, P, and r.
selections:
f=In (AP/r)
f = In (A/rP)
f= rIN (A/P)
T = i/r In (A/P)
If you could please explain it to me.
Thanks you very much
Click here to see answer by stanbon(26297) |
Question 73173: I am not sure how to start the equation for this word problem, can you please help?
Question: A consultant traveled 6 hours to attend a meeting. The return trip took only 5 hours because the speed was 10 miles per hour faster. What was the consultant's speed each way?
Click here to see answer by stanbon(26297) |
Question 73572: I just do not know how to do these. Please help?
Write the equation of the line passing through each of the given pairs of points. Write your result in slope-intercept form, where possible.
(-1, 3) and (4, -2)
Click here to see answer by stanbon(26297) |
Question 73570: I have no clue what this is asking of me. Please help?
Rewrite into Standard Form
Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
(0,5), m=-3/5
Click here to see answer by stanbon(26297) |
Question 73570: I have no clue what this is asking of me. Please help?
Rewrite into Standard Form
Write the equation of the line passing through each of the given points with the indicated slope. Give your results in slope-intercept form, where possible.
(0,5), m=-3/5
Click here to see answer by checkley75(3666) |
Question 73562: I think I may have submitted this one before but I am really having trouble with it still.
Business and finance. The cost of producing a number of items x is given by C = mx + b, in which b is the fixed cost and m is the variable cost (the cost of producing one more item).
(a) If the fixed cost is $40 and the variable cost is $10, write the cost equation.
This is what I came up for this part.
C = 10x + 40
b) Graph the cost equation.
(c) The revenue generated from the sale of x items is given by R = 50x. Graph the revenue equation on the same set of axes as the cost equation.
(d) How many items must be produced for the revenue to equal the cost (the break-even point)?
Click here to see answer by stanbon(26297) |
Question 73499: 3. Write a system of two equations in two unknowns. Solve the system by using the substitution method. « The length of a rectangular field is 12 feet longer than the width. If the perimeter is 144 feet, then what are the length and width ? » Show your work.
Click here to see answer by ankor@dixie-net.com(6693)  |
Question 73659: How do you find the x-intercept of the graph of the equation:
x + 6y = 7
Also how do you find the y-intercept of the graph of the equation:
y - 3x = 4
I tried to do the problem x+6y=7 like this:
x+6y=7
x+6(1)=7(i used 1 as just a filler because thats the only way i knew to answer)
1+6(1)=7
I got this answer wrong on my test and have one more chance to correct it.
Thank you for your help.
Briana
Click here to see answer by lover5gurl3(2) |
Question 73684This question is from textbook college algebra
: Please tell me if i did these right!!
) It is approximately 300 miles from Chicago, Illinois, to St. Louis, Missouri. Allowing for various traffic conditions, a driver can average approximately 60 miles per hour.
a) How far have you traveled after 3 hours?
Answer: 180
Show work in this space: 60*3= 180
b) How far have you traveled after 4 hours?
Answer: 240
Show work in this space: 60* 4= 240
c) How far have you traveled after t hours? i.e. write a linear function that expresses the distance traveled, d, as a function of time, t.
Answer: 60 miles left to go
Distance = rate * distance
D=r(t)
300-240=60
d) How far will you HAVE LEFT to travel to reach St. Louis after you have traveled 3 hours?
Answer: 120 m
Show work in this space: 300 m-180=102m
e) How far will you HAVE LEFT to travel to reach St. Louis after you have traveled 4 hours?
Answer: 60 m
This question is from textbook college algebra
Click here to see answer by bucky(1732) |
Question 73783This question is from textbook college algebra
: Did I do this right? Any assistance would be greatly appreciated:)
) Given a line containing the points (1,3), (2,4), (3,5) determine the slope-intercept form of the equation, give one additional point on this line and graph the function.
Show your work here: y2-y1/x2-x1= -4,-6
Give one additional point in (x,y) form that would fall on this line: 4,6
This question is from textbook college algebra
Click here to see answer by checkley75(3666) |
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