The zeros of a function are at x = -5 and x=9. Which of the following is an equivalent expression that will reveal the vertex? f(x) = x2 + 41 – 45
f(x) = x2 - 4x – 45
f(t) = (2 – 2)2 – 49
f(3) = (x+2)2 - 49

f(x) =  x² + 4x - 45.  That is the 2nd answer given.

Step-by-step explanation:

If the zeros of a function are    x = -5   and    x = 9,    that means

f(x) = 0 when x = -5 or when x = 9

So we can try factoring    f(x) as     f(x) = {x - (-5)} * (x - 9)

                                                         f(x) =  (x + 5)(x-9)

                                                          f(x) =  x² + 4x - 45

                                                                  That is the 2nd answer given.

answer: idk

step-by-step explanation:

the correct option is 2.

step-by-step explanation:

according to the given information triangle abc is a right angle triangle with right angle at a. segment ab is 5 and segment ac is 7. point d is on segment bc and angles adb and adc are right angles.

it is given that triangles abd, cad, and cba are similar.

two triangles are similar if their corresponding sides are proportional.

in triangle cba, using pythagoras theorem

                      )

triangle abd and cba are similar,

                            (2)

triangle cad and cba are similar,

                      )

using (1), (2) and (3), we get

hence proved.

therefore option 2 is correct.