Linear Functions UNIT 4 Review OPTIONAL

Front

What is the y-intercept of the linear function y = 4x?

Back

0

Front

What direction does an undefined slope indicate?

Back

Vertical

Front

Which equation represents the slope-intercept form?

Back

y = mx + b

Front

What is the point-slope form of a linear equation?

Back

y - y₁ = m(x - x₁)

Front

What is the y-intercept for the graph represented by the point (0,-1)?

Back

(0,-1)

Front

Define slope in the context of linear functions.

Back

Slope (m) is the ratio of the rise (change in y) to the run (change in x) between two points on a line.

Front

What does the term 'linear function' mean?

Back

A linear function is a function that graphs to a straight line, defined by the equation y = mx + b.

Front

What is the formula to calculate the slope between two points (x₁, y₁) and (x₂, y₂)?

Back

m = (y₂ - y₁) / (x₂ - x₁)

Front

What does the 'b' represent in the slope-intercept form y = mx + b?

Back

The 'b' represents the y-intercept of the line.

Front

How do you identify the slope from the equation y = 3x + 2?

Back

The slope (m) is 3.