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Tutors Answer Your Questions about Coordinate-system (FREE)
Question 1045706: I need the answer to this question:
Since Pure gold is very soft, other metals are often added to gold to make an alloy that is stronger and more durable. the relative amount of gold in a piece of jewelry is measured in karats. The formula is  , where k represents karats and g is the percent of gold in the piece.
a) Determine the domain and range values for which this function makes sense.
b) Graph the function and describe the graph.
c) How many karats are in a ring made of pure gold
Click here to see answer by solver91311(24713)   |
Question 1045902: Hi! What are the equivalent "y"s in this quadratic function -2x^2+12x-19
using this given: x|1|2|3|4|5|
i tried and get a y|-19|-3||-1|-3|-19|
some said that i must have a y-intercept of
(0,19) but i dont have it.I think im wrong:(.
Click here to see answer by MathLover1(20849)  |
Question 1045896: 1.QUIZ PROBLEM. Find limx→1− f(x), limx→1+ f(x), limx→1 f(x) of the
following graph.
For the next three problems, make a table of average velocities with three
columns: time, position, and average velocity from time t0. From the table,
guess the instataneous velocity.
2. s(t) = 6t + 7, t0=1.
3. s(t) = t^2 + 4t, t0=0.
4. s(t) = 10cost, t0 = π/2
Does anyone know how to post pictures on here?
Click here to see answer by solver91311(24713) |
Question 1045944: you bought a car for $10,000 four years ago, since then it has lost 20% of its original value. Assuming depreciation is linear, how many years after your initial purchase will it be when the car is only worth $1,000?
Click here to see answer by ewatrrr(24785)  |
Question 1046742: what is the answer to the answer?
a cricket ball is hit directly upwards. its height above ground, h meters, after t seconds, is given by 
I have to determine the coordinates for the axis intercepts.
so i got
my teacher got this, but i don't know how and i need it for my exam tomorrow
Click here to see answer by josgarithmetic(39613) |
Question 1048174: The curve for which dy/dx = 2*x+k, where k is a constant, is such that the tangent at (0,3) passes through (-1.5,0). Find the gradient of this tangent and hence determine the value of k and the equation of the curve.
Thanks
Click here to see answer by Alan3354(69443)  |
Question 1048355: The graph shows the total number of alcohol-related car crashes in Ohio at a particular time of day for the years 1991-2000. Time is measured in hours after midnight.
(a) During what interval is the number of crashes below 15,000? (Enter the interval that contains smaller numbers first.)
( , )
(b) During what interval is the number of crashes above 15,000? (Enter the interval that contains smaller numbers first.)
( , ) ∪ ( , )
Click here to see answer by solver91311(24713) |
Question 1049844: 12. Find the slope of the graph of the equation y = 3x - 4
13. Find the slope of the graph of the equation -4x + 2y = -10
14. Find the x and y intercepts of the graph of the equation -3x + 2y = 78. Find the intercepts algebraically and show your work on your work paper.
15. Find the x and y intercepts of the given graph in number 7.
Click here to see answer by josgarithmetic(39613) |
Question 1049845: 12. Find the slope of the graph of the equation y = 3x - 4
13. Find the slope of the graph of the equation -4x + 2y = -10
14. Find the x and y intercepts of the graph of the equation -3x + 2y = 78. Find the intercepts algebraically and show your work on your work paper.
15. Find the x and y intercepts of the given graph in number 7.
Click here to see answer by ikleyn(52747)  |
Question 1052098: Please Help Me!
I have a solution that I have been diligently working on but cannot come up with a solution! It is due on the 11 of October and I am in grave need of assistance!
Problem: A 1-meter wide border must be placed around the triangle in the given picture. Find the equations of the three lines that define the outer edge of this border.
Picture of problem and video (for hint) is Here:
Picture link: https://www.scribd.com/document/327019766/Challenge-Problem-2
Video link (hint): http://screencast.com/t/1f75AMBDW
Click here to see answer by josgarithmetic(39613) |
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