Unit 4 Test Review!

Front

Write a linear equation in the form of y=mx+b.

Back

y = 2x + 2

Front

What is the equation of a line with a zero slope that goes through the point (6, 7)?

Back

y = 7

Front

What is the explicit formula for the n-th term a_n of the arithmetic sequence 2, 9, 16, 23, ...?

Back

a_n = 2 + 7(n-1)

Front

In the inequality y ≥ -2x - 2, where will the shading be?

Back

above

Front

What does the slope (m) represent in the equation y = mx + b?

Back

The slope represents the rate of change of y with respect to x.

Front

What is the y-intercept (b) in the equation y = mx + b?

Back

The y-intercept is the value of y when x = 0.

Front

How do you determine if a sequence is arithmetic?

Back

A sequence is arithmetic if the difference between consecutive terms is constant.

Front

What is the formula for the n-th term of an arithmetic sequence?

Back

a_n = a_1 + (n-1)d, where a_1 is the first term and d is the common difference.

Front

What does it mean for a line to have a zero slope?

Back

A line with a zero slope is horizontal and indicates that y does not change as x changes.

Front

How do you graph a linear equation?

Back

To graph a linear equation, find two points that satisfy the equation and draw a line through them.