Question 11 3 pts
The tide level goes down all evening, and Hamid's instruments read 11 ft above his
marker 1 hour before he arrived. Write the equation in slope-intercept form of the line
that represents today's tide level y relative to the marker over time x, if Hamid knows
the line is parallel to the graph of yesterday's data, y--8x- 2.
Enter answer with no spaces or CAPS.

final answer is : )

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places