SAT Test review

Front

For all real numbers x and y, simplify: 4x(x) - 3xy(2x) = ?

Back

2x^2(2 - 3y)

Front

What is the equation of the line with an x-intercept of 5 and y-intercept of 6?

Back

y - 6 = (-6/5)x

Front

If y varies inversely as the square of x, what happens to y when x is multiplied by 4?

Back

y will be divided by 16.

Front

Which statement is true for all values of x, y, and z? I. (x+y) + z = (z+y) + x II. (x - y) - z = (z - y) - x III. (x÷y) ÷ z = (z÷y) ÷ x

Back

I only.

Front

Simplify: (1/3)(21m + 27) = ?

Back

7m + 9.

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

Define the slope of a line.

Back

The slope is the ratio of the rise (change in y) to the run (change in x) between two points on the line.

Front

What is the formula for the slope-intercept form of a line?

Back

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

Front

What does it mean for two variables to vary inversely?

Back

If one variable increases, the other decreases such that their product is constant.

Front

What is the distributive property?

Back

a(b + c) = ab + ac.