Math Help

Archive for October, 2007

Question: Math linear equation help, Can someone please help?? Im confused?

The linear equation y = 5 graphs as a horizontal/vertical/diagonal line (choose the correct label and type it below).

Im confused here, Can someone help me understand this as it is some how solved??? Thanks in advance.

Answer: y is always 5, no matter what x is.

so some ordered pairs would be ( -2, 5) ( 3, 5 ) ( 10, 5 ) etc.

graph these points and you’ll see that any line that says “y = ” is parallel to the X-axis and thus horizontal.

IF IT SAID “X = 5″, the line would be parallel to the Y-axis, and vertical, example of points ( 5, 1) ( 5, -6 ), ( 5, 0 ) etc

Basic Math Skills : Solving Linear Equations for Y

Question: Sisters Math Homework?

My sister didn’t do well in her math during the school year, and now she is stuck in summer school. She asked me to check her homework, and I said okay because I figured it would be easy. Needless to say I’m no math wiz and I think a first grader would probably know more than me. The Q’s are..

(Find the absolute change and then find the relative change as a percentage. Round answers to the nearest tenth if necessary.)
Q.The population of Placerville grew from 4800 in 1980 to 6150 in 2000.
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Q. Midtown Antiques collects 5% sales tax on all sales. If total sales including tax are
$1318.14, find the portion that is the tax amount.
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Q.The appliance store where the Scott family shops offers a 7% discount for paying cash. The Scott family received a discount of $34.02. What was their total bill before the discount?

( if my sister finds out I had to ask online i’ll never live it down)

Answer: If you are checking your “sister’s” work — show us her answers. Otherwise we’ll just think you’re cheating. You wouldn’t want that, would you?
(BTW: The “sister” gig is almost the oldest trick in the book.)

Mathematics Homework Help – YourTeacher.com – 1000+ Online Math Lessons