soffy362
soffy362 soffy362
  • 22-07-2020
  • Mathematics
contestada

y = 16-x^2

Find the value of k ​

y 16x2Find the value of k class=

Respuesta :

jimrgrant1 jimrgrant1
  • 22-07-2020

Answer:

k = - 4

Step-by-step explanation:

Given

y = 16 - x²

The point (k, 0 ) is a zero. To find the zero let y = 0, that is

16 - x² = 0 ( add x² to both sides )

16 = x² ( take the square root of both sides )

x = ± [tex]\sqrt{16}[/tex] = ± 4

The zeros are x = - 4 and x = 4

Since (k, 0 ) is to the left of the origin, then k = - 4

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