The processor speed, in megahertz, of certain PC processors could be approximated by the following function of time t in years since the start of 1995: P(t) = 75t + 220 if 0 ≤ t ≤ 4 600t − 1880 if 4 < t ≤ 9. (A) Evaluate P(0), P(3), and P(6)?
Ask for:
Interpret the results.
(a.1). P(0) means at the start of the year __ the processor speed was __ megahertz.
(a.2). P(3) means at the start of the year _ the processor speed was ___ megahertz.
(a.3). P(6) means at the start of the year __ the processor speed was __ megahertz.
Ask for:
Interpret the results.
(a.1). P(0) means at the start of the year __ the processor speed was __ megahertz.
(a.2). P(3) means at the start of the year _ the processor speed was ___ megahertz.
(a.3). P(6) means at the start of the year __ the processor speed was __ megahertz.
1 Answer
Jun 21, 2018
a1. 220 start in 1995
a2. 445 start in 1998
a.3 1720 start in 2001
Explanation:
First of all, the only correct graph is the lower left one, with an angle change at t = 4.
From that we can see that the speed first exceeded 2GHz was 1995 + 6 = 2001. (6.5 years after 1995).
