Sat 数学历年真题

What are we looking for? The value of x

A* n*

* n just means total number of terms. If there were 5 terms in the sequence, n = 5. Don’t let variables scare you. Make them your friends (we refer to them as such through this text)!

Now plug in given information.

3

×3 = 8×3 3

×3 = 24

3 The 3’s cancel each other out.

12 12

12 12

The 12’s on the left side cancel out and we’re left with 24/12.

B is the Correct Answer Test 1 Section 3 Question 4

Graphing Question. There will be many. Own them.

What are we looking for? The graph that agrees with the statement, “No two points on the graph have the same x- coordinate.”

Know the rules of a function: Every “x” value of a function has only ONE

UNIQUE “y” value. Isn’t that the same thing as the statement in the question? Yes. iii