G9 Jeopardy

Linear Equations

100

x

2x + 5 = 15

What is

x = 5?

200

The slope of the line that passes through the points (2,3) and (4,7)

What is 2?

300

Equation of line with slope = -2 and y-intercept = 4

What is

y = -2x + 4?

400

x and y

3x + y = 9

2x - y = 4

What is

x = 13/5 = 2.6

y = 6/5 = 1.2?

500

Graph

2x - 3y < 6

What is

[drawn graph]?

Quadratics

100

Factor

x² + 5x + 6

What is

(x + 2)(x + 3)?

200

Factor

x² - 9

What is

(x + 3)(x - 3)?

300

Factor

2x² + 7x + 3

What is

(2x + 1)(x + 3)

400

x

x² - 4x - 12 = 0

What is

x = 6 or x = -2?

500

Factor

3x³ - 12x² + 9x

What is

3x(x - 3)(x - 1)?

Exponents

100

2³ × 2⁴

What is

2⁷ or 128?

200

(3²)³

What is

3⁶ or 729?

300

5⁶ ÷ 5²

What is

5⁴ or 625?

400

0.00056 in scientific notation

What is

5.6 × 10^-4?

500

x⁵ × x^-3 ÷ x²

What is

1?

Functions

100

y-intercept of

y = 3x + 7

What is

7?

200

f(2) if

f(x) = x² - 4x + 1

What is

-3?

300

Linear or non-linear:

f(x) = 2x + 3

What is linear?

400

Domain of

f(x) = 1 ÷ (x - 5)

What is all real numbers except 5?

500

Transformation of

y = (x - 3)² + 2

relative to

y = x²

What is shifted right by 3 units and up by 2 units?

Mystery

100

2, 4, 8, 16, ...

What is 32?

200

Multiplying me by any other number always gives the same answer.

What is 0?

300

The angle between the hour hand and minute hand at 3:00

What is 90 degrees?

400

There are 3 bags with balls. Each bag has 2 red balls and 3 blue balls, and one ball from each bag is picked. The probability that all three balls are red.

What is

8/125?

500

I am a three-digit number. My tens digit is five more than my ones digit. My hundreds digit is eight less than my tens digit.

What is 194?