Seudónimo Seudónimo
  • 21-01-2021
  • Mathematics
contestada

The graph y = 1/2x^2 - x - 4 is shown below. State the coordinate of the zero(s):

The graph y 12x2 x 4 is shown below State the coordinate of the zeros class=

Respuesta :

eudora eudora
  • 26-01-2021

Answer:

Zeros → (-2, 0) and (4, 0)

Step-by-step explanation:

Equation of the graph has been given as,

y = [tex]\frac{1}{2}x^{2} -x-4[/tex]

For zeros of the function,

y = 0

Therefore, [tex]\frac{1}{2}x^{2} -x-4=0[/tex]

By solving the equation algebraically,

x² - 2x - 8 = 0

x² - 4x + 2x - 8 = 0

x(x - 4) + 2(x - 4) = 0

(x + 2)(x - 4) = 0

x = -2, 4

Therefore, coordinates of the zeros will be (-2, 0) and (4, 0).

Let's confirm the zeros (x-intercepts) from the graph attached,

Coordinates of the x-intercepts are,

(-2, 0) and (4, 0)

Answer Link

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