2. What is the domain and range for the function shown on the graph? у 5 3 2 1 -5 4 -3 -2 -1 0 2 3 -2 -3 -5 A. The domain is 4 and the range is 4. B. The domain is 4 and the range is all real numbers. C. The domain is all real numbers and the range is 4. D. The domain is all real numbers and the range is all real numbers.

how am i supposed to answer

step-by-step explanation:

what are ur choices?

10.416 m/s

step-by-step explantion:

distance=100m

time= 9.6s

average speed=100/9.6

=10.416 m/s

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