1st Semester Exam

Front

Solve for x: 4x + 7 = 23

Back

x = 4

Front

Describe the association for the graph: Linear and Negative, Linear and Positive, Non-Linear and Positive, Non-Linear and Negative, Non-Linear and No Association.

Back

Linear and Negative

Front

What is the constant of proportionality for this table? Options: $1/9 per hour, $9 per hour, $8 per hour.

Back

$9 per hour

Front

Which inequality represents how long Johnny needs to work to afford his new bike if he earns $15 per hour and wants to earn at least $105? Options: 15h ≤ 105, 15h > 105, 15h < 105, 15h ≥ 105.

Back

15h ≥ 105

Front

For the equation y - 3 = 2(x + 4), what is the slope and what point does the line contain? Options: (-4, 3), (3, -4), (-3, -4), (-4, -3).

Back

Slope = 2, Point = (-4, 3)

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What does the slope of a line represent?

Back

The rate of change of y with respect to x.

Front

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

Back

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

Front

What is a proportional relationship?

Back

A relationship where two quantities maintain a constant ratio.

Front

How do you find the y-intercept of a linear equation in slope-intercept form (y = mx + b)?

Back

The y-intercept is the value of b.