12. A function f (x) = x2 is given. Answer the following question for the function f(x).

(i) What is the algebraic nature of the function?

(ii) Write the name of the locus of the curve.

(iii) Write the vertex of the function.

(iv) Write any one property for sketching the curve.

(v) Write the domain of the function.​

r and t.

both are 64 degrees.

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