8th Math Semester 1 Review

Front

Solve the literal equation for x: y = mx + b

Back

x = (y - b) / m

Front

What property justifies the step of distributing a term across a sum?

Back

Distributive Property

Front

What property justifies the step of subtracting a term from both sides of an equation?

Back

Subtraction Property

Front

What is the x-intercept of the graph represented by the point (x,y)?

Back

(-4,0)

Front

Find the value of x so that the perimeters of two polygons are equal: x = ?

Back

x = 8

Front

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

Back

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

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed.

Front

What does the term 'perimeter' refer to in geometry?

Back

The total distance around a polygon.

Front

What is the formula for the perimeter of a rectangle?

Back

P = 2(l + w) where l is length and w is width.

Front

What is the definition of an x-intercept?

Back

The point where a graph crosses the x-axis (y=0).