I don’t know the answer but all you have to do is search “slope calculator”
M a t h w a y to find the answer
Answer:

Step-by-step explanation:




but if

then since


so

or





The solutions to f(x) = 64 is x = 7 and x = –7.
Solution:
Given data:
– – – – (1)
– – – – (2)
To find the solutions to f(x) = 64.
Equate equation (1) and (2), we get

Subtract 15 from both sides of the equation.



Taking square root on both sides of the equation, we get
x = ±7
The solutions to f(x) = 64 is x = 7 and x = –7.
Year 1
58054.76=63,103(1-r)^1
Year 2
53,410.38=63103(1-r)^2