T 7. The expression $20,000 - 1250t models the value, in dollars, of a piece of equipment
years after purchase. What is the value of the equipment after 8 years?
A $15,000
B $0
C $150,000
D $10,000

answer: 4

step-by-step explanation:

true

explanation:

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

a function could be identified in 3 ways either on a chart,graph, or ordered pairs. first a function is that each point has its own. the rule is that there can be many x's to one y but there can not be 2 x's at different y's. so on a graph when you put a straight line through the y's there should be one dot only to be a function.

step-by-step explanation: