SAT Math Question[Functions]

Test Preparation SAT Preparation
1

<li><p>I got the right answer but i’m not sure if i did it correctly, can somebody check out question 16 on BB page 684? </p></li>
<li><p>Can you do this : a^2-5a+6 ->>> a(a-5) + 6 ?</p></li>
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2

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<li><p>First, read the definition of (oval x). From it, you get a^2-a=(a-2)^2-(a-2). Expanding, you get a^2-a=a^2-4a+4-a+2. Simplifying, you get 4a=6. Solving for a yields 3/2, choice C.</p></li>
<li><p>Yes, it's mathematically sound.</p></li>
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3

<p>dunno about the first one, but the second one is fine. just use some random numbers and check it yourself if you want to be sure.</p>