OpenStudy (anonymous):

if triangle ABC is translated up 5 units and to the right three units, which of the following would be the new coordinates of point B?

6 years ago
OpenStudy (anonymous):
6 years ago

OpenStudy (mathteacher1729):

1) Start at point B. 2) Go up 5. 3) Go to the right 3. 4) Write the coordinate of that new point. :)

6 years ago
OpenStudy (anonymous):

a. (-3,0) b. (-1,-2) c. (-1,-8) d. (-9,0)

6 years ago
OpenStudy (mathteacher1729):

Here is a picture which illustrates what I was taking about. I made them in geogebra, a great little program for geometry and algebra (it's free and works on all operating systems!) :)

6 years ago
OpenStudy (anonymous):

yay I got it right ;) thank youuu!

6 years ago
OpenStudy (anonymous):

if tiangle ABC is reflected through the y-axis which of the following would be the new coordinates of point B

6 years ago
OpenStudy (anonymous):

triangle*

6 years ago
OpenStudy (mathteacher1729):

Pretend the Y axis (the one that goes up and down) is a mirror. Now where would the point B appear to end up if it were reflected in this mirror?

6 years ago
OpenStudy (anonymous):

how do i calculate the surface area of a triangular prism?

6 years ago
OpenStudy (mathteacher1729):

http://mdk12.org/instruction/curriculum/hsa/geometry/math_reference_sheet.html

6 years ago