A biologist is tracking the total population of birds in a national park. Over a 20-year period, the rate of change of the population went from –6,500 per year to 4,200 per year. Which statement best describes this change? The rate of change increased by 10,700 per year.
The rate of change decreased by 10,700 per year.
The rate of change increased by 2,300 per year.
The rate of change decreased by 2,300 per year.

parallel and congruent

step-by-step explanation:

the movement of translation is linear.   these have the same translation because you are using the same rule for each point of the triangle so you will see the same slope being used to get from a point on the triangle to its image.

same slope!   you should think parallel when you see those 2 word together (well unless it's the same line but it can't be because we are coming from different points here)

congruent! because each point is being moved the same distance.

-4

step-by-step explanation:

(-4+8)=-(4-8)=-8+4=-4

s

step-by-step explanation: