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Tutors Answer Your Questions about Coordinate-system (FREE)
Question 46116: i have never used your site before but a lot of kids at my school swear by you guys. We are working on parabolas and I have no clue. I need to determine the vertex of the graph of the parabola from the following
y= x squared + 9
hope you guys are as good as everyone says. thanks and have a good one
Click here to see answer by Nate(3495)   |
Question 46274: Find the domain and range of the graphed quadratic function. Assume that the graph continues without end. Since i cant show the the graph i can tell up about it. the parabola goes down and it point ( vertex i think ) is at (2,1). Hope you understand it.
Click here to see answer by Nate(3495) |
Question 46691: I am looking for helping in plotting the below problem. I BELIEVE it will end up with perpendicular lines but I'm not sure and I'm womdering if someone can give me a full explanation on how to do this as well as plot it:
( 5/2, 7/2)
Click here to see answer by checkley71(8405) |
Question 46845: can someone help me with the following problem please?
it asks to Find the points of intersection between the line y=x+7 and the curve x^2+2x+5.Also it asks to sketch the area between the graphs............im not sure what that means.
Please do help thank u!!
Click here to see answer by atif.muhammad(135) |
Question 47310: I need a formula to calculate the length between to points on a graph-
Example:
Between (3,3) and (3,7) would be a length of four.
I need a reusable formula for a computer program and I can't remember the name of the one we used in high school (otherwise I would just find it on the internet)
Click here to see answer by moremath(1) |
Question 48215: When you graph a quadratic function and find the vertex is on the Y-axis, you know for sure that?
I think that we know for sure that the coefficient of the x term ("b") is zero; OR
The roots of the equation is the positive and negative of the same number (+p and -p).
Click here to see answer by Earlsdon(4900) |
Question 49841: I was using your site to teach my son algebra, and we noticed an incorrect answer that we wanted to notify you about.
"Checkley71" answered question #1743 by starting this way:
Problem to graph: 2x+4y=-8
Error made in solving equation was when he subtracted 2x from both sides, he got: 4y=-2x+8
"Checkley71" accidentally changed the (-8) to a (+8) when he subtracted 2x from both sides. The rest of the problem was wrong from that point forward. Please send me an e-mail when the problem is corrected so I can again review it with my son.
Thanks for a great site!
Rick Ross
krar64@hotmail.com
Click here to see answer by alka(15) |
Question 49841: I was using your site to teach my son algebra, and we noticed an incorrect answer that we wanted to notify you about.
"Checkley71" answered question #1743 by starting this way:
Problem to graph: 2x+4y=-8
Error made in solving equation was when he subtracted 2x from both sides, he got: 4y=-2x+8
"Checkley71" accidentally changed the (-8) to a (+8) when he subtracted 2x from both sides. The rest of the problem was wrong from that point forward. Please send me an e-mail when the problem is corrected so I can again review it with my son.
Thanks for a great site!
Rick Ross
krar64@hotmail.com
Click here to see answer by Earlsdon(4900) |
Question 49694: the table below shows the relationship between the amount of hours billy worked and the amount of his paycheck. identify the independent and dependent quantities and justify your answer.
hours: 10 15 20 25
amount: 70 105 140 175
Click here to see answer by tutorcecilia(2042) |
Question 51380: Please help me solve the following problem; Write the eqation of the line that passes through the point?(2,1) and is parallel to the line with the eqation y=5/2x + 6. I honestly do not know where to even begin on this.
Click here to see answer by Earlsdon(4900) |
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