For this graph, mark the statements that are true.
a. the domain is the set of all real
numbers.

b. the range is the set of all real
numbers greater than or equal to
zero.

c. the domain is the set of all real
numbers greater than or equal to

d. the range is the set of all real numbers.

Girardo is using the model below to solve the equation . girardo uses the following steps: step 1 add 4 negative x-tiles to both sides step 2 add 1 negative unit tile to both sides step 3 the solution is which step could be adjusted so that gerardo's final step results in a positive x-value? in step 1, he should have added 4 positive x-tiles to both sides. in step 1, he should have added 3 negative x-tiles to both sides. in step 2, he should have added 4 negative unit tiles to both sides. in step 2, he should have added 1 positive unit tile to both sides.