Another chart question that i don’t know

From birth to 5yo = 91,200

from 5 to 18yo = 167,000

therefore from birth to 18yo will cost 91,200 + 167,000 which is 258,200

Since the question says per year and thats the total cost of 18 years ( from 0 years to 18), we divide it by 18.

258,200 ÷ 18 = 14,344

Answer a: 14,344

because they could drop even lower..

the formula of a slope:

from a table we have

substitute:

the slope of f(x) is -1.

the graph of funcfion g(x) is a horizontal line. the slope of a horizontal line is equal 0. therefore the slope of g(x) is 0.

-1 < 0