Determine if the following scenarios could be modeled by a linear function, exponential function, or neither

Question

(a) Last year, Pinwheel Industries introduced a new model calculator. It cost $ 2000 to develop the calculator and $ 20 to manufacture each one. What would be the total cost, C, of producing n calculators?

(b) A colony of bacteria starts with 300 organisms and doubles every week. What would be the total population, P, of the bacteria colony after t weeks?

(c) In 1998, the average annual cost of attending a public college was $ 10,069, and costs were climbing by 6% per year. What would be the cost, C, of one year of college t years after 1998?

(d) Assume the height, h of a right triangle is equal to its base, b. What is the area of the triangle, A, in terms of its base b? (Area of a triangle = 1/2base x height.)

Answer 1

a. c=2000+20n

b. p= 300*2^t

c. Area= (1/2)b*b