8th grade math milestone review

Front

What is the value of 18^0?

Back

1

Front

How do you write 8.7 x 10^-1 in standard form?

Back

0.87

Front

What does it mean if a system of equations has infinitely many solutions?

Back

The equations represent the same line, meaning every point on the line is a solution.

Front

If Erin is 3 years younger than twice Alex's age and their ages combined are 33, what is the system of equations that represents this situation?

Back

x + y = 33, x = 2y - 3

Front

What is the range of integers that 8.5 falls between?

Back

8 and 9

Front

What is the definition of a variable in algebra?

Back

A symbol used to represent an unknown value.

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 does it mean for two lines to be parallel?

Back

They have the same slope and will never intersect.

Front

What is the standard form of a linear equation?

Back

Ax + By = C, where A, B, and C are integers.

Front

How do you convert a number in scientific notation to standard form?

Back

Multiply the number by 10 raised to the power indicated.