ACC Final Review

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, typically represented as 'm' in the equation of a line (y = mx + b). It is calculated as the rise over run, or the change in y divided by the change in x.

Front

How do you find the slope from a table of values?

Back

To find the slope from a table of values, select two points (x1, y1) and (x2, y2) from the table and use the formula: slope (m) = (y2 - y1) / (x2 - x1).

Front

What is a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It can be written in the form y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the cost equation for the Frederick County Fair?

Back

The cost equation for the Frederick County Fair is C = 15 + 2.5x, where C is the total cost and x is the number of rides.

Front

What is the cost equation for the Montgomery County Fair?

Back

The cost equation for the Montgomery County Fair is C = 10 + 3x, where C is the total cost and x is the number of rides.

Front

How do you set up an equation to compare two costs?

Back

To compare two costs, set the two cost equations equal to each other and solve for the variable (usually representing quantity, like the number of rides).

Front

What is simple interest?

Back

Simple interest is calculated using the formula I = PRT, where I is the interest, P is the principal amount, R is the rate of interest per year, and T is the time in years.

Front

How do you calculate the interest rate from simple interest?

Back

To calculate the interest rate from simple interest, rearrange the formula I = PRT to R = I / (PT).

Front

What is the Associative Property of Addition?

Back

The Associative Property of Addition states that the way in which numbers are grouped in an addition problem does not change the sum. For example, (a + b) + c = a + (b + c).

Front

What is the Commutative Property of Addition?

Back

The Commutative Property of Addition states that the order in which numbers are added does not change the sum. For example, a + b = b + a.