Semester 2 Review

Front

What is the power rule for exponents?

Back

When multiplying two powers with the same base, you add the exponents.

Front

What does it mean for two lines to be perpendicular?

Back

Two lines are perpendicular if they intersect at a right angle (90 degrees).

Front

What is a rational number?

Back

A rational number is any number that can be expressed as a fraction, where both the numerator and the denominator are integers.

Front

What is the solution to the system of equations y = 9/2x - 4 and 2x + 9y = 18?

Back

(1, 3)

Front

What is the solution to the system of equations 2x + 9y = 18 and 3x - y = 9?

Back

(6, -2)

Front

What is the difference between rational and irrational numbers?

Back

Rational numbers can be expressed as fractions, while irrational numbers cannot be expressed as simple fractions.

Front

What does it mean for two lines to be parallel?

Back

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

Front

What is the formula for finding the slope of a line?

Back

Slope (m) = (y2 - y1) / (x2 - x1) for two points (x1, y1) and (x2, y2).

Front

What is a system of equations?

Back

A system of equations is a set of two or more equations with the same variables.

Front

How do you solve a system of equations graphically?

Back

You graph both equations on the same coordinate plane and find the point(s) where they intersect.