A tire warehouse has an inventory of 100 tires. Customers can only purchase tires in complete sets of four. Create and graph the solution set to the equation for the remaining amount of tires, y, in terms of the number of sets of tires purchased, x.

The cost of using a service is $0.25 per min. what equation correctly represents the total cost c, in dollars, for d days of use?

Statements reasons 1. ab ? cd; ad ? bc 1. given 2. ac ? ac 2. reflexive property 3. ? adc ? ? cba 3. ? 4. ? dac ? ? bca; ? acd ? ? cab 4. cpctc 5. ? dac and ? bca are alt. int. ? s; ? acd and ? cab are alt. int. ? s 5. definition of alternate interior angles 6. ab ? cd; ad ? bc 6. converse of the alternate interior angles theorem 7. abcd is a parallelogram 7. definition of parallelogram what is the missing reason in step 3?

What is the effect on the graph of the function f(x) = x2 when f(x) is changed to f(x) − 4?