Question

A quadratic function has a line of symmetry at x = –3 and a zero at 4.

What is the distance from the given zero to the line of symmetry?

Answer 1

What is the distance from the given zero to the line of symmetry? It's "7"

What is the other zero of the quadratic function? It's "-10"

Answer 2

Just find the distance from -3 to 4. That's 7.
It is 7 units to the left of -3. Subtract 7 from -3. That's -10