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.

im alright what do you need

step-by-step explanation:

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.

she drove 134 miles

step-by-step explanation:

b. 153 students do not participate in sports and seventy-five 12th graders were surveyed