Review packet 3&4

Front

What is the difference when you subtract (3 - 2x + 2x^2) from (4x - 5 + 3x^2)?

Back

-x^2 - 6x + 8

Front

If human hair grows at an average rate of 0.5 inches per month, how long will it take to grow 3 inches?

Back

0.5t = 3 ; t = 6 months

Front

Is the polynomial 7x^3 - 11x^2 + 8x - 5 written in standard form?

Back

True

Front

What is the distance between the numbers 6 and -4.25 on a number line?

Back

10.25

Front

How do you express the total dollars (d) a flower deliveryman earns after making x deliveries if he receives $40 a day plus $10 per delivery?

Back

d = 10x + 40

Front

What is a polynomial?

Back

A polynomial is a mathematical expression consisting of variables, coefficients, and non-negative integer exponents, combined using addition, subtraction, and multiplication.

Front

What is the standard form of a polynomial?

Back

The standard form of a polynomial is when the terms are arranged in descending order of their degree.

Front

How do you find the average of a set of numbers?

Back

Add all the numbers together and divide by the total count of numbers.

Front

What is the formula for finding the distance between two points on a number line?

Back

Distance = |x1 - x2|, where x1 and x2 are the two points.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value(s) of the variable(s) that make the equation true.