SAT Subject Test Mathematics Level 1

(A) (B) (C) (D) (E) 7 . If 8x = 16x–1, then x = (A) (B) (C) 2 (D) 4 (E) 8 8 . If what is the value of x in ...

(B) (C) (D) (E) 9 . If 2 x – 9y = 11 and x + 12y = –8, what is the value of x + y? (A) (B) (C) 1 (D) ...

(C) {x: –2 < x < 5} (D) {x: x < –5 or x > 2} (E) {x: x < –2 or x > 5} ...

Answer Key ALGEBRA DIAGNOSTIC TEST 1 . E 2 . E 3 . A 4 . B 5 . A 6 . E 7 . D 8 . B 9 . ...

Find Your Study Plan The answer key shows where in this chapter to find explanations for the questions y ...

Algebra Test Topics The questions in the Algebra Diagnostic Test are typical of those on the Mathematics subject ...

Answering a question like this is just a matter of plugging in and cranking out. You are given an ...

y^13 ÷ y^8 = y13–8 = y^5 Raising a power to an exponent: To raise a power to an exponent, keep ...

Example 2 There’s nothing tricky about this question if you know how to work with exponents. The first step ...

The next step is to look for factors common to the numerator and denominator. The 6 on top and the 8 on ...

ax + bx = (a + b)x ax – bx = (a – b)x Combining like terms: To combine like terms, keep the vari ...

Multiplying binomials: To multiply binomials, use FOIL. To multiply (x + 3) by (x + 4), first multiply t ...

After multiplying two polynomials together, the number of terms in your expression before simplifying should equal ...

The result is 2 x^2 + 3x – 4 with a remainder of 4. Long division is the way to do Example 3: Exampl ...

The question says that the remainder is 3, so whatever k is, when you subtract –4 from it, you get 3: ...

Factor common to all terms: A factor common to all the terms of a polynomial can be factored out. This is ...

Factor common to all terms: ax + ay = a(x + y) Difference of squares: a^2 – b^2 = (a – b)(a + b ...

To reduce a fraction, you eliminate factors common to the top and bottom. So the first step in reducing an a ...

Now (3 – x) can be eliminated from both the top and the bottom: That’s the same as choice (B): Alternative met ...

THE GOLDEN RULE OF EQUATIONS You probably remember the basic procedure for solving algebraic equations: Do the ...