NC Math 1 EOC Review

Front

What is the formula for exponential decay?

Back

y = a(1 - r)^t, where 'a' is the initial amount, 'r' is the decay rate, and 't' is time.

Front

How do you determine the percent of a quantity that evaporates in an exponential decay model?

Back

Subtract the remaining percentage from 100%. For example, if y = 100(0.78)^x, then 100% - 78% = 22% evaporates.

Front

What is a linear function?

Back

A function that can be graphically represented as a straight line, defined by the equation y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the next term in a linear sequence?

Back

Identify the common difference and add it to the last term. For example, in the sequence 2, 8, 14, 20, the common difference is 6.

Front

What does the inequality y > mx + b represent?

Back

It represents a region above the line y = mx + b in the coordinate plane.

Front

What is the significance of shading in graphing inequalities?

Back

Shading indicates the solution set of the inequality, showing all the points that satisfy the inequality.

Front

What is a trapezoid?

Back

A quadrilateral with at least one pair of parallel sides.

Front

How do you determine if a set of points forms a linear function?

Back

Check if the differences in y-values divided by the differences in x-values are constant.

Front

What is the slope-intercept form of a linear equation?

Back

y = mx + b, where m is the slope and b is the y-intercept.

Front

What is the formula for finding the slope between two points (x1, y1) and (x2, y2)?

Back

Slope (m) = (y2 - y1) / (x2 - x1).