Mth 124 Exam 1 questions with
verified answers
A potato is put in an oven to bake at time t=0. Draw a possible graph for the potato's
temperature as a function of time. - correct answer ✔✔ Should increase and level off at some
point.
Estimate ƒ'(3), where ƒ(x)=4^x - correct answer ✔✔ ƒ'(3)=88.7228394
A company has a cost function C(q)=4000+2q dollars and revenue function R(q)=10q dollars
a.) What are the fixed costs for the company?
b.) Find the break even point - correct answer ✔✔ a.) $4000 is fixed cost
b.) $500 is break even
From the tables below, decide whether the involved function is a linear, an exponential or
neither.
a.) x l 0 l 1 l 2 l 3
f(x) l 10.5 l 12.7 l 18.9 l 36.7
b.) t l -1 l 0 l 1 l 2
g(t) l 50.2 l 30.12 l 18.072 l 10.8432
c.) s l 0 l 2 l 4 l 6
h(s) l 27 l 24 l 21 l 18 - correct answer ✔✔ a.) Neither
b.) Exponential; y=30.12(0.6)^x
c.) Linear;
verified answers
A potato is put in an oven to bake at time t=0. Draw a possible graph for the potato's
temperature as a function of time. - correct answer ✔✔ Should increase and level off at some
point.
Estimate ƒ'(3), where ƒ(x)=4^x - correct answer ✔✔ ƒ'(3)=88.7228394
A company has a cost function C(q)=4000+2q dollars and revenue function R(q)=10q dollars
a.) What are the fixed costs for the company?
b.) Find the break even point - correct answer ✔✔ a.) $4000 is fixed cost
b.) $500 is break even
From the tables below, decide whether the involved function is a linear, an exponential or
neither.
a.) x l 0 l 1 l 2 l 3
f(x) l 10.5 l 12.7 l 18.9 l 36.7
b.) t l -1 l 0 l 1 l 2
g(t) l 50.2 l 30.12 l 18.072 l 10.8432
c.) s l 0 l 2 l 4 l 6
h(s) l 27 l 24 l 21 l 18 - correct answer ✔✔ a.) Neither
b.) Exponential; y=30.12(0.6)^x
c.) Linear;
