Question

B) Find the values of y.

y² = 169
I wrote that it equals to 13 but it’s not right. Please help!!

Answer 1

y = ± 13

Explanation:

y² = 169 ( take square root of both sides )

y = ±
`√(169)` = ± 13

since 13 × 13 = 169 and - 13 × - 13 = 169

then y = 13 and y = - 13