Unit 3 Test Review: Linear Relationships

Front

What is the x-intercept of the equation 3x + 8y = 24?

Back

(8, 0)

Front

What type of slope does a horizontal line have?

Back

Zero slope

Front

Write the equation in slope-intercept form for a situation with a $20 startup fee and a $5 monthly fee.

Back

y = 5x + 20

Front

If Bob has $150 in his savings account and saves $40 per month, which equation represents the amount he has after x months?

Back

y = 40x + 150

Front

What does a slope of 25 words per minute indicate in a graph?

Back

Taylor can write 25 words per minute.

Front

Define slope in the context of a linear relationship.

Back

Slope is the rate of change of the y-value with respect to the x-value.

Front

What is the slope of the line represented by the equation y = 2x + 3?

Back

2

Front

How do you find the y-intercept of a linear equation?

Back

Set x = 0 and solve for y.

Front

What does it mean if a line has a negative slope?

Back

As x increases, y decreases.

Front

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

Back

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