IA Semester Exam Review 1

Front

What is the x-intercept?

Back

The x-intercept is the point where a line crosses the x-axis. It is the value of x when y = 0.

Front

What is the slope-intercept form of a line?

Back

The slope-intercept form of a line is given by the equation y = mx + b, where m is the slope and b is the y-intercept.

Front

What does a proportional relationship look like?

Back

A proportional relationship can be represented by the equation y = kx, where k is a constant. The graph of this relationship is a straight line that passes through the origin.

Front

Identify the equation: y = 0.25x. Is it proportional or non-proportional?

Back

It is proportional because it can be expressed in the form y = kx.

Front

What is the next term in the series 4, 16, 64?

Back

The next term is 256, as each term is multiplied by 4.

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Front

What is the definition of a linear equation?

Back

A linear equation is an equation that makes a straight line when graphed. It can be written in the form Ax + By = C.

Front

What is the y-intercept of the line y = -2x + 5?

Back

The y-intercept is 5, which is the value of y when x = 0.

Front

What does it mean for a function to be non-proportional?

Back

A non-proportional function does not have a constant ratio between y and x. Its graph does not pass through the origin.

Front

What is the formula for the nth term of a geometric sequence?

Back

The nth term of a geometric sequence can be found using the formula a_n = a_1 * r^(n-1), where a_1 is the first term and r is the common ratio.