How does the eye control the amount of light entering it?

Hello there

Explanation:

The colored part of the eye which helps regulate the amount of light entering the eye. When there is bright light, the iris closes the pupil to let in less light. And when there is low light, the iris opens up the pupil to let in more light. Focuses light rays onto the retina.

answer: a) y=-8x+5

a) m= -8

b) m= -2

c) m= 7

d) m= 6