Math 8 Chapter 4 Test

Front

What is the equation to find the number of sausage pizzas if there are 2 times as many pepperoni as cheese and 3 more sausage than cheese?

Back

Let x = number of cheese pizzas. Then, pepperoni = 2x and sausage = x + 3. The total pizzas equation is: x + 2x + (x + 3) = 31. Solving gives x = 7 (cheese), 14 (pepperoni), and 10 (sausage).

Front

In which quadrant is the point (-2, -3)?

Back

Quadrant 3 (III) because both x and y coordinates are negative.

Front

Simplify the expression: 1y - 2x - 3y + 4x

Back

The simplified expression is -2y + 2x.

Front

How do you calculate the perimeter of a quarter circle?

Back

The perimeter of a quarter circle is calculated as (1/4) * 2πr + 2r, where r is the radius.

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 tile pattern decreases by 3 tiles and Figure 2 has 7 tiles, what is the equation in slope-intercept form?

Back

The equation is y = -3x + 13.

Front

What is the value of 'x' in the equation 2x + 3 = 11?

Back

x = 4.

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 * base * height.

Front

What does it mean for a point to be in Quadrant 1?

Back

In Quadrant 1, both x and y coordinates are positive.

Front

What is the formula for the circumference of a circle?

Back

Circumference = 2πr, where r is the radius.