PLZ HELP I WILL MARK BRAINLIST look at the graph of the linear function. the rate of change between point a and point b is 2. what is the rate of change between point c and d?

a.-2
b.-1/2
c.1/2
d.2​

Determine the domain and range of the given function. the domain is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}. the range is all real numbers all real numbers greater than or equal to –2{x: x = –2, –1, 0, 1, 2}{y: y = –2, –1, 0, 1, 2}.