Reference Sheet Review

Quad Formula

100

The general form of the quadratic equation

y = ax² + bx + c

200

In quadratic equation, this letter represents the constant

What is C?

300

To find the axis of symmetry, use this formula

What is x = -b/2a?

400

This is turning point of the parabola, the graph of a quadratic equation

What is vertex?

500

The formula to solve a quadratic equation

What is x = -b ± √(b² - 4ac) / 2a?

Linear

100

The general formula for a linear equation

What is y=mx+b

200

The b represents this in y=mx+b

What is the Y-intercept?

300

m in the formula y=mx+b is the slope. To find the slope, you must use this formula

What is m = y₂ - y₁/x₂ - x_1?

400

y=mx+b is the formula for a linear equation, but can also be called 

What is line of best fit or linear regression?

500

The amount Mike gets paid weekly can be represented by the expression 2.50a + 290, where a is the number of cell phone accessories he sells at work. Name the constant term in this expression and what it represents.

What is 290 and the amount he is guaranteed to be paid each week.

Exponential

100

The general form for an exponential equation

What is y=ab^x

200

The formula for compound interest.

What is A=P(1 +/- r)ⁿ

300

The letter n in the annual compound interest formula stands for this.

What is time?

400

The r represents this in the compound interest formula.

What is growth rate?

500

Maria invests $6,154 in a savings account with an annual interest rate of 8%. The account balance be after 10 years rounded to the nearest cent is

What is $11390.62?

Sequence

100

The formula for the adding or subtracting pattern within an explicit sequence

What is a_n=a₁+d(n-1)?

200

The formula for the multiplying or dividing pattern within an explicit sequence

What is a_n=a₁r^n-1?

300

This letter represents the adding or subtracting pattern in an explicit sequence

What is d?

400

This letter represents the multiplying or dividing pattern in an explicit sequence

What is r?

500

The equation that represents the sequence -2, -5, -8, -11, -14

What is a_n = -2 + (-3)(n-1)?

Misc

100

Max - Min

What is range?

200

Quartile 3 - Quartile 1

What is IQR or InterQuartile Range?

300

This formula for slope can also be used for Average Rate of Change

What is m = y₂ - y₁ / x₂ - x₁ ?

400

The n in a_n or (n-1) represents this

The term number

500

What type of sequence has alternating positive & negative terms?

Geometric