The table shows the outputs, y, for different inputs, x:
input (x)
6
12
15
25
output (y)
14
15
15
16

part a: do the data in this table represent a function? justify your answer. (3 points)

part b: compare the data in the table with the relation f(x) = 7x − 15. which relation has a greater value when x = 6? (2 points)

part c: using the relation in part b, what is the value of x if f(x) = 6? (5 points)

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

step-by-step explanation:

we can use this expression to calculate the energy gain as a particle moves with a field or the energy loss as it moves against it. (note that it is also used to define the electron-volt, a unit of energy equal to that gained by an electron as it falls through a pd of 1 v, i.e. w = 1 ev = 1.6 10-19 c 1 v = 1.6 10-19j).in fact this expression is really nothing more than the statement that potential is the potential energy per unit charge. in this case, v= w/qis simply stating that the change in potential energy(or work done) per unit charge is equal to the change in potential (or potential difference), v.student questions: uniform electric fields2electron beamcathode+5 kvanode0 v