Module 4 Test Review

Front

What is the equation for a linear function given a starting amount and a rate of change?

Back

The equation is in the form y = mx + b, where m is the rate of change (slope) and b is the starting amount (y-intercept).

Front

How do you identify the y-intercept from a linear equation?

Back

The y-intercept is the value of y when x = 0, which is represented by the constant term in the equation y = mx + b.

Front

What does the slope of a line represent in a real-world context?

Back

The slope represents the rate of change or how much y changes for a unit change in x.

Front

How can you convert a word problem into a linear equation?

Back

Identify the variables, the rate of change, and the initial value, then use the form y = mx + b.

Front

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

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

If a job pays $15 per hour and starts with $20, what is the equation representing total earnings after x hours?

Back

The equation is y = 15x + 20.

Front

What is the significance of the constant term in a linear equation?

Back

The constant term represents the initial value or starting point of the function.

Front

How do you determine the slope from a linear equation?

Back

The slope is the coefficient of x in the equation y = mx + b.

Front

What is the y-intercept of the equation y = -2x + 4?

Back

The y-intercept is 4.

Front

What is the slope-intercept equation if m = 3 and b = 6?

Back

The equation is y = 3x + 6.