Chapter 4 Review (alg 1)

Front

What is the common difference in the arithmetic sequence: 29, 21, 13, 5, ...?

Back

d = -8

Front

Write the equation of the line with slope -2 through the point (7, -1).

Back

y = -2x + 13

Front

Write the equation of the line with slope 4 through the point (-2, 5).

Back

y = 4x + 13

Front

Find the 26th term in the arithmetic sequence: 20, 26, 32, 38, ...

Back

170

Front

Which line is perpendicular to the line: y=1/3x+7?

Back

y=-3x+8

Front

Define an arithmetic sequence.

Back

An arithmetic sequence is a sequence of numbers in which the difference between consecutive terms is constant.

Front

What is the formula for the nth 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

How do you find the slope of a line given two points?

Back

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

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if the product of their slopes is -1.

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.