Education.com

# Tip #44 to Get a Top SAT Math Score (page 2)

By Brian Leaf
McGraw-Hill Professional

1. B   The graph shown is a transformation of the parent y = x2 moved down 1 unit, so y = x2 – 1. You could also "Use the Answers" and graph each answer choice on your calculator to see which one matches the graph shown in the question.
2. C   This is a straightforward transformation. The parent function g(x) needs to be shifted 1 unit to the right. If you memorize the transformations listed in this Skill, the question is easy; a right transformation would be y = g(x – 1). If you did not memorize the transformations, get to it, you silly slacker. Or, you could graph each choice on your calculator and see which one yields results that are all 1 unit to the right of the parent.
3. D   This is a transformation. The graph shown in the question is y = x2 moved 1 unit left. To also move it down 2 units would result in the equation y = (x + 1)2 – 2. You could "Use the Answers" and use your calculator to graph each answer choice to see which one shows the graph from the question moved 2 units down.
4. D   You can see that n is a transformation of m, and using a pair of points as reference, you can see that it has been moved up 1 unit and left 2 units. So, based on the equation n(x) = m(x + h) – k, h = 2 and k = –1. So hk = 2 – (–1) = 3.

Go to: Tip #45

150 Characters allowed

### Related Questions

#### Q:

See More Questions

### Today on Education.com

#### WORKBOOKS

May Workbooks are Here!

#### ACTIVITIES

Get Outside! 10 Playful Activities