Precal Review

Pascal Triangle

100

What is the top number of Pascal’s Triangle?

1

200

List the numbers in the 2nd row.

1 , 1

300

Add the numbers in the 3rd row.

4

400

What numbers always appear on the outside of Pascal’s Triangle?

1

500

List the coefficients from the 4th row of Pascal’s Triangle (used for (a+b)⁴)

1,4,6,4,1

Evaluate Function

100

Evaluate f(x)=2x+5 when x=−3

-1

200

A function is given by f(x)=3x−4. Find f(2)

2

300

Evaluate f(x)=x² at x=−3.

9

400

(f∘g)(x) if f(x) = 2x and g(x) = x +1 for x=3

8

500

if f(x) = x+5, evaluate the inverse function f^-1(7)

2

Function Domain/ Range

100

What is the domain of f(x)=x+2?

All real number

200

Determine the domain of f(x) = 1/ x-2 

All real numbers except x=2

300

Determine the domain of f(x) = 5x/2x-3

All real number except x=3/2

400

Find the range of f(x)= x² - 4

y is greater than or equal to negative four

500

Find the range of f(x) = 1/x

All real numbers except 0

Equation

100

Solve for x

2x + 5 = 11

3

200

Solve for x

(2x-1)/3 = 5

8

300

Solve 2/x = 14

x = 1/7

400

3x/(x-2) = 6

x = 4

500

x² - 5x + 6 = 0

x = 2 and x=3