PART 2-First Semester Review-A1

Front

What is the interval notation for the inequality x > -1?

Back

(-1, ∞)

Front

Solve the equation |x| = 9.

Back

x = -9 or x = 9

Front

Solve for m in the equation y = mx + b.

Back

m = \frac{y - b}{x}

Front

What describes the range of a graph where all values are positive?

Back

All range values are positive.

Front

When graphing b < 6, should you use an open or closed circle?

Back

Open circle.

Front

What is the definition of interval notation?

Back

A way to describe a range of values using parentheses and brackets.

Front

What does an open interval (a, b) signify?

Back

It includes all numbers between a and b, but not a and b themselves.

Front

What does a closed interval [a, b] signify?

Back

It includes all numbers between a and b, including a and b.

Front

How do you solve an absolute value equation like |x| = a?

Back

Set up two equations: x = a and x = -a.

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.