Answer: (-1,0)
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Explanation:
A quick method is to simply look at the graph and notice the two altitudes cross at (-1,0)
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A longer method involves a bit of algebra but its not too bad
y = x+1
y = -1+1 ... plug in x = -1 (ie replace x with -1)
y = 0
So when x = -1, the value of y is y = 0
They pair up to get (x,y) = (-1,0) which confirms what the graph is showing
It would be 1:20 proportional to 4:5
A) From the function p(t)=6(t), we know that p is 6t, so we plug this into it, to get 3.14 * (6t)^2, or 113.04t^2.
B) Using what we got from A), we plug it in and get 113.04 * 8 * 8, or 7234.56 (Use a calculator on this, or just bash it with pencil and paper).
-13/8
-1.264
-5/4
-1.015
-14/25
-0.480
A
y = m x + b
y = -1 x + -6
y = -x - 6