Continuing Algebra

This video tutorial revisits key algebra concepts, focusing on absolute value and its properties, emphasizing that it is always positive as it represents distance from zero. It also explains direct and inverse variation, detailing how variables change in relation to each other. Direct variation is described by the equation x = k * y, where y changes directly with x. Inverse variation is explained with x * y = k, where y changes inversely with x. The tutorial provides examples and encourages using algebra knowledge to solve related problems.

What is the absolute value of -8?

• -8

• 0

• 8

• 16

Which of the following equations represents direct variation?

• x + y = k

• x / y = k

• x = k + y

• x = k * y

If x triples in a direct variation, what happens to y?

• y remains the same

• y halves

• y doubles

• y triples

Which equation represents inverse variation?

• x = k * y

• x - y = k

• x + y = k

• x * y = k

In an inverse variation, if x doubles, what happens to y?

• y remains the same

• y doubles

• y halves

• y triples