Exam Review: Foundations of Alg

Front

What inequality does the number line graph represent?

Back

x < -4

Front

Find the slope of the line represented by the equation y = -x + 2.

Back

m = -1

Front

Find the slope of the line that passes through (10, 1) and (5, 2).

Back

m = -1/5

Front

When writing in interval notation, what kind of brackets do I use for ≤ or ≥?

Back

[ ]

Front

Identify the slope from the equation y = -8x.

Back

m = -8

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

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

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

Front

What does a positive slope indicate about a line?

Back

The line rises from left to right.

Front

What does a negative slope indicate about a line?

Back

The line falls from left to right.

Front

What is the slope of a horizontal line?

Back

m = 0