TSI Math Review

Front

What is the solution to the equation x² - 8x = -15?

Back

x = 5.

Front

What is the discounted price of a $3.80 large popcorn on sale for 25% off?

Back

The discounted price is $2.85.

Front

If y = x/2 and x = -2, what is (x + 2y)(x - y)?

Back

The result is 4.

Front

If 3t - 7 = 5t, what is the value of 6t?

Back

6t = -21.

Front

If y varies inversely as x, and y = 4.5 when x = 10, what is x when y = 5?

Back

x = 9.

Front

What is the formula for the area of a rectangle?

Back

Area = length × width.

Front

What is the Pythagorean theorem?

Back

In a right triangle, a² + b² = c², where c is the hypotenuse.

Front

What is the slope-intercept form of a linear equation?

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 quadratic formula?

Back

x = (-b ± √(b² - 4ac)) / (2a).