First Nine Weeks Exam

Question 1

If the inequality has no equal to sign…

Answer 1

The circle on the graph is open

Question 2

If the inequality has an equal to sign the circle is

Answer 2

A closed dot

Question 3

y=a(x-h)^2+k

What does the a do?

Answer 3

Stretch or compress the graph (+ or - reflect it)

Question 4

y=a(x-h)^2+k

What does h do?

Answer 4

Moves left or right (- moves right and + moves left)

Question 5

What is the i (imaginary number) pattern?

Answer 5

i=i
i^2=-1
i^3=-i
i^4=1

Question 6

What do inconsistent lines look like

Answer 6

Parallel, no solution

Question 7

What do dependent lines look like?

Answer 7

The two lines are the same w/ infinite solutions

Question 8

What is the compounded yearly, monthly, etc formula?

Answer 8

Compounded yearly:

A=P(1+r/n)^nt

Question 9

What is the compounded continuously formula?

Answer 9

Compounded continuously:

A=Pe^rt

Question 10

What does the r and the n in the formula Compounded yearly:
A=P(1+r/n)^nt or formula
Compounded continuously:
A=Pe^rt

Answer 10

r= the rate (%)
n= changes per unit (annually, quarterly, etc.)