## anonymous one year ago how would you find the x an y intercepts of y=xsqrrt16-x^2 ?

1. welshfella

the y intercepts is when x = 0 so plug in x = 0 into the function and work it out

2. welshfella

to find the x intercepts sole xsqrrt16-x^2 = 0

3. anonymous

you will put y as equal to zero and then $\sqrt{16}-x^{2}$ x will be 4 and -4

4. welshfella

i'm assuming there are parentheses around the 16 - x^2

5. welshfella

the x intercepts will be 4 and -4 but also 0.

6. welshfella

xsqrrt(16-x^2) = 0 x = 0 , x^2 - 16 = 0 x^2 = 16 so x = 4 ,-4

7. welshfella

y intercept = 0* sqrt16 = ?

8. anonymous

yint=0 ?

9. welshfella

yes

10. anonymous

thank you so much!

11. welshfella

yw