Determine the zeros of the function 2x2 - 4x - 6 = 0.

  -1, +3

Step-by-step explanation:

The equation can be factored as ...

  2(x² -2x -3) = 0

  2(x -3)(x +1) = 0

The zeros are the values of x that make the factors zero:

  x = 3, x = -1

The zeros are -1 and 3.

look at the picture.

y-intercept for the function on a picture is 4 → point (0, 4).

y-intercept for the function

is for x = 0. substitute:

y-intercept is 8 → point (0, 8).

the answer is 13 cm