Which equation whеn graphed has x-intercepts at (2, 0) аnd (4, 0) and ay-intercept
оf (0, -16)?
f(x) = -2(x+2)(х+4)
f(x) = -2(х – 2)(х-4)
f(x) = -(х + 2)(х+4)
f(x) = -(х – 2)(х-4)

what is the question?

step-by-step explanation:

wfirfkfr/jjfi; jn; p/ojkfvlbvmkmgkgkkkgkkg

step-by-step explanation:

the answer is a if my teacher taught me correct

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