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madhatter
ayesha is a gatdener who makes square gardens in various sizes. the table shows the side lengths in feet,and the areas of various gardens,in square feet. A.write the valuse from the table as a set of ordered pairs B.graph the relation describe your graph and explain whether it is a function. C. describe the relationship between the side lenght and area of the garden D.suppose the area of a garden is 3,600 square feet discribe how to find the
each row corresponds to an ordered pair
so the first row of 14 and 196 means we have the point (14, 196) the second row has 18 and 324, so we have (18, 324) etc etc
you do this for every row to fill out part a)
part b) plot every point you get from part a) and draw a curve through all of the points to graph the equation
k... so after i do that then what
describe the relationship between the side length and area of the garden I'll leave that to you, tell me what you think is the relationship
can we go back to a plz
ok what do you want to ask about that
so i charted all them down what do i do after that
ok what points did you get
(14,196) (18,324) (22,484) (26,676) (30,900)
correct, plot all these points on the same xy axis
after you have plotted all those points, you would then draw a curve through those all of these points
any ideas on C?
nope i am so lost in this stuf i hate it
14^2 = 196 18^2 = 324 22^2 = 484 etc etc so the relationship is this Area = (Side length)^2 ie you square the side length to get the area
for part d), you do this A = s^2 3600 = s^2 s^2 = 3600 s = ???
ok cool thanks i get so lost i have 2 more to do then i am do.....
might have to ask u for more help but not sure
one evening at 6pm the temp was 24F as the night progressed the temp dropped at a stedy rate of 4F pre hour A.make a table of values for the function for for values of 0 -8 let 0 persent the time for 6 pm
there are 2 more that i will typ up to
ok let's do these one at a time then
first row will be 0 and 24 second row will be 1 and 20 (subtract 4 from 24) third row will be 2 and 16 (subtract 4 from 20) fourth row will be 3 and 12 (subtract 4 from 16) etc etc until you have 9 rows total
thanks B.write a function rule for the liner function explain your method for witeing the rule
y = mx + b y = -4x + b ... plug in the slope of -4 (I'll explain how I got this later) y = -4x + 24 ... plug in the y-intercept of 24 (this is the initial temperature) f(x) = -4x + 24 So the function rule is f(x) = -4x + 24
The slope is found by subtracting two temperatures (next to each other)....so 24 - 20 = 4 ... make this difference positive if it's not already then you subtract two hour values (next to each other) ...so 1 - 0 = 1 ... make this difference positive if it's not already Now divide the two differences: 4/1 = 4 Then make the slope negative. The slope is negative because the temperature is DECREASING So the slope is m = -4
you could pick on temperatures and hour values not next to each other, but it's easier to use values next to each other
ok cool the next part is C at what time will the temp reach 0F explian the method of finding the time
f(x) = -4x + 24 0 = -4x + 24 solve for x
ok thanks so much r u willing to help with one more or r u done lol
i can do one more
ok thanks so much u r a life saver oh hey i think i can figure it out on my own actually lol thanks so much for helping me
yay that's great that you can, and I'm glad to be of help to you
sorry for asking so much and takeing up so much of ur time