<p>BB Pg 415
Each time Caroline turns on her computer, she (has) to enter a company code, then her initials, and then (enters a password) (before) she can (begin working). (No error)</p>
<p>Whats wrong with (has) ???</p>
<p>BB pg 480
The quality of multivitamin tablets (is determined) by (how long) (its) potency (can be protected) by the manufracturer’s coating material. (no error)</p>
<p>(its) is wrong ? doesnt it correctly refer to the tablets ?</p>
<p>BB pg 603
Available through the school’s guidance office (is) a job directory and a list of job referral centers (that provide) (information for) students (in need of) employment. (no error)</p>
<p>i have absolutely no idea whats wrong with (is)</p>
<p>BB pg 682
In the xy-coordinate plane, line m is the reflection of line l about the x-axis. If the slope of m is -4/5, what is the slope of l ?</p>
<p>If its reflected about the x axis, wouldnt they make a perpendicular line? if its perpendicular, then l’s gradient would be negative reciporcial which means it would be 5/4. But the answer is 4/5… Why ?</p>
<p>“is” is incorrect because there are two objects: a job directory and a list of job referral centers. It’s like saying “Available through the school’s guidance office is two items.” It should be “are” instead. :)</p>
<p>
</p>
<p>It doesn’t have to be perpendicular. For example, try graphing y=x/4 and then reflecting across x-axis: you’ll see that it’s not perpen. The slope will instead be just the <em>negative</em> of the original graph: the only thing that’s changing when you reflect across the x axis is the slope, right? It’s going to go in the opposite direction, hence it’ll be -1 * m, so the answer is 4/5.</p>
<p>Err that’s weird, pretty for the first question “enters a password” should just be “her password”. But I guess ‘has’ is colloquial or something?</p>
<p>For the vitamins question, the subject is plural, should be ‘theirs’.</p>
<p>Each time Caroline turns on her computer, she (has) to enter a company code, then her initials, and then (enters a password) (before) she can (begin working). (No error)</p>
<p>A parallel structure:
a company code
then her initials
then a password.</p>
<p>The quality of multivitamin tablets (is determined) by (how long) (its) potency (can be protected) by the manufracturer’s coating material. (no error)</p>
<p>“(its) is wrong ? doesnt it correctly refer to the tablets ?”
You are right, Aeon87, potency refers to the tablets<a href=“plural”>/u</a>; so it should read their potency.
If you leave its, then its potency refers to the quality: the quality’s potency</p>
<ol>
<li> “enters a pass word” is wrong
has to enter a company cord, her initials, and a pass word. (parallelism)</li>
<li> The antecedent of “its” is multivitamin tablets (plural noun), so “their” is correct. (incorrect pronoun)</li>
<li> This sentence is inverted. Think about the original sentence: A job “directory” and the "list " of job referral centers (that provide information for student in need of employment) “are” available through the school’s guidance office. Answer: “is” is wrong. (subject-verb agreement)</li>
</ol>