9 Weeks Review 8th Grade Math

Front

What is the equation that represents the total charge in dollars, y, for a delivery of x cookies if the bakery charges a $3 delivery fee and $1.50 per cookie?

Back

y = 1.5x + 3

Front

What is the initial amount Josh put in the jar if he saves $120 initially and adds $240 each month?

Back

$120

Front

If two triangles are similar, what does it mean about their corresponding angles and sides?

Back

Corresponding angles are equal, and corresponding sides are in proportion.

Front

What is the formula for the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and never intersect.

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

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

Back

The y-intercept is 5.

Front

How do you find the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What is the relationship between the angles in a right triangle?

Back

The sum of the angles in a right triangle is 180 degrees, with one angle being 90 degrees.