Question

Y=4-x2 what is the positive zero of this polynomial

Answer 1

The positive zero is x=2

Explanation:

we know that

The x-intercepts or zeros of the polynomial are the values of x when the value of y is equal to zero

we have

`y=4-x^(2)`

so

For y=0

`0=4-x^(2)`

solve for x

`x^2=4\\x=\pm2`

so

The zeros of the polynomial are x=-2 and x=2

therefore

The positive zero is x=2