Math 8 Chapter 4 Test

Front

What is the solution to the equation x + 3 = 8?

Back

x = 5

Front

How do you calculate the area of a rectangle?

Back

Area = length × width

Front

A car can travel 476 miles on 14 gallons of gas. How many gallons are needed to travel 578 miles?

Back

17 gallons

Front

Write an equation for a linear pattern where the slope is 3 and the y-intercept is 1.

Back

y = 3x + 1

Front

What is the area of a circle with a radius of 2 feet?

Back

Area = πr² = 12.57 square feet (approximately)

Front

What is the formula for the area of a triangle?

Back

Area = 1/2 × base × height

Front

If a rectangle has a length of 10 feet and a width of 5 feet, what is its area?

Back

Area = 50 square feet

Front

What is the perimeter of a square with a side length of 4 feet?

Back

Perimeter = 4 × side = 16 feet

Front

How do you find the slope of a line given two points (x1, y1) and (x2, y2)?

Back

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

Front

What is the equation of a line in slope-intercept form?

Back

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