Tutors Answer Your Questions about Graphs (FREE)
Question 212950: y = 2^x x = 2^y
Evaluate the exponential equation for three positive values of x, three negative values of x, and x =0. Transform the second expression into the equivalent logarithmic equation; and evaluate the logarithmic equation for three values of x that ar greater than 1, three values of x that are between 0 and 1, and at x = 1. Use the resulting ordered pairs to plot the graph of each function.
On the first equation I got y = 2^x
X Y 3 positives of x
1 2
2 4
3 8
X Y 3 negatives of x
-1 -2
-2 -4
-3 -8
X Y x = 0
0 2
I do not under stand the second part of this equation. Is the first part correct?
Click here to see answer by rapaljer(4671)   |
Question 212950: y = 2^x x = 2^y
Evaluate the exponential equation for three positive values of x, three negative values of x, and x =0. Transform the second expression into the equivalent logarithmic equation; and evaluate the logarithmic equation for three values of x that ar greater than 1, three values of x that are between 0 and 1, and at x = 1. Use the resulting ordered pairs to plot the graph of each function.
On the first equation I got y = 2^x
X Y 3 positives of x
1 2
2 4
3 8
X Y 3 negatives of x
-1 -2
-2 -4
-3 -8
X Y x = 0
0 2
I do not under stand the second part of this equation. Is the first part correct?
Click here to see answer by Theo(13342)  |
Question 212993: If an object on Earth is projected upward with an initial velocity of 32 feet per second, then its height after (t) seconds is given by: h(t)=32t-16t^2. Find the maximum height attained by the object and the number of seconds it takes to hit the ground.
I began like this:
h(t)=-16t^2 + 32t
-32/2(-16)=-32/32=1
-16(1)^2 + 32(1)
-16+32=16 and now I am stuck!
Click here to see answer by jim_thompson5910(35256) |
Question 212974: Growth of bacteria. The bacteria Escherichia coli (E. coli) are commonly found in the human bladder. Suppose that 3000 of the bacteria are present at time t=0. Then t minutes later, the number of bacteria present is N(t) = 3000(2)^t/20. if 100,000,000 bacteria accumulate, a bladder infection can occur. If, at 11:00am, a patient's bladder contains 25,000 E. coli bacteria, at what time can infection occur?
Click here to see answer by Earlsdon(6294) |
Question 213099: 1. What is the graph of a line that passes through (3,3), perpendicular to
graph of y=3.
2. What is the graph of a line that passes through (2,-5), parallel to
graph of x=4
3. If the graph of the equation ax+3y=9 is perpendicular to the graph of
the equation 3x+y=-4, find the value of a
Click here to see answer by drj(1380)  |
Question 213110: The measures of the angles of a pentagon are consecutive even integers. If the angles of a pentagon add up to 540 degrees, find the measure of each angle.
I have to set up a table with this problem also. I would really appreciate your help. Thanks for your time.
Click here to see answer by mistercc(1) |
Question 213110: The measures of the angles of a pentagon are consecutive even integers. If the angles of a pentagon add up to 540 degrees, find the measure of each angle.
I have to set up a table with this problem also. I would really appreciate your help. Thanks for your time.
Click here to see answer by edjones(8007)  |
Question 213221: {(-2,-4),(-1,-1),(0,0)(1,-1),(2,-4)}
it ask to express each relation as a table, as a graph, and as a mapping diagram.
I don't know how to do that
like what exactly do you do
Click here to see answer by vleith(2983) |
Question 213444: Suppose that a circle has an equation of the form x^2 + y^2 =r^2, r>0. What is the center of the circle? What is the radius of the circle?
I am lost since there aren't any numbers to plug into the equation....
Click here to see answer by rapaljer(4671) |
Question 213444: Suppose that a circle has an equation of the form x^2 + y^2 =r^2, r>0. What is the center of the circle? What is the radius of the circle?
I am lost since there aren't any numbers to plug into the equation....
Click here to see answer by drj(1380) |
Question 214069: Hi, I am having a hard time figuring what formula or equation needs to be applied to this problem. There's a slope graph. (0,96) (2.5,196)
Not sure if this is considered quadratic or just a simple word problem that need to be converted into an equation.
The graph below shows the height in feet, of a ball thrown straight up with an initial speed of 80 feet per second from an initial height of 96 feet after t seconds. Use the graph to answer the following questions.
a) What is the height of the ball at 1.5 seconds?
b) What is the maximum height of the ball and at what time does it occur?
c) Find the H intercept of the graph and explain what is happening to the ball at that point.
d) Find the T intercept of the graph and explain what is happening to the ball at that point.
Click here to see answer by ankor@dixie-net.com(22740)  |
Question 214116: How do you graph the relatin (0,0), (2,4), (-4,0), and find the domain and range.It asks you to determine whether the relation is a function or not. I am totally lost. Please help!
Thank you!
This is not from a book. It was a worksheet given to me.
Click here to see answer by jim_thompson5910(35256) |
Question 214385: A photography expedition planned an 8-day crossing of an animal preserve. Each person can carry at most a 5-day supply of water. What is the smallest number of people that must start the trip in order for one member of the group to cross the preserve and the others to return safely to the starting point?
Click here to see answer by DRichardson(63)  |
Question 214270: Okay so I have 2 questions.
my first one is, how do you figure out the function of a graph that
is not linear besides plugging in values for x?
My second one is, how do you figure out what the end behavior of a graph is??
and what is an asymtope?
Click here to see answer by edjones(8007) |
Question 214343: Hi again, I asked this question some time ago, but had never got an answer, if anyone can help me I would be most grateful.
a) Find the area of the region bounded by the parabola:
f(x) 2x^2, g(x) = 3x^2 + 5 and the line y = 8.
b) Find dy/dx given that y = l+x(^2)e^(y)
Thanks again, Nick.
Click here to see answer by jsmallt9(3758) |
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