1)If the dilation D (2,-4) = (-1,2), the scale factor k is equal to
K
a)-2
b)-1/2
c)1/2
d)2
2)If the area of trianle ANT is 5 square inches, the area of its image A'N'T' under the dilation D would be:
-2
a)5/2 square inches
b) 3 square inches
c) 10 square inches
D) 20 square inches
1)I believe it is A
2)I believe it is C
Also a few other problems,
3) Find the image of (6,-9) under the dilation D negative 1.
4) Find the image of (6,-9) under the dilation D 2/3-
For the above 2 problems:
3)I believe you would just multiply the -1 to 6 and then -9.
4)I believe you would just multiply the 2/3 to the 6 and then to the negative 9.
Apply this to the following problems: A blueprint has a scale of 1 inch=12 feet. Find the actual length represented by each length represented by each length of this blueprint.
5)3/4 inch
6)1 1/2 inches
7)2 1/8 inches
Im not sure how to do those but I think you have to change each of them to like units and multiply, so 3/4 times 12. Im not sure how to do those at all.
Apply this to the following problems: A blueprint has a scale of 1 inch=12 feet. Find the length on the blueprint needed to represent each length.
8)6 feet
9)24 feet
Thanks in advance for any help that anyone could give me.
Thanks again,
Ryan
K
a)-2
b)-1/2
c)1/2
d)2
2)If the area of trianle ANT is 5 square inches, the area of its image A'N'T' under the dilation D would be:
-2
a)5/2 square inches
b) 3 square inches
c) 10 square inches
D) 20 square inches
1)I believe it is A
2)I believe it is C
Also a few other problems,
3) Find the image of (6,-9) under the dilation D negative 1.
4) Find the image of (6,-9) under the dilation D 2/3-
For the above 2 problems:
3)I believe you would just multiply the -1 to 6 and then -9.
4)I believe you would just multiply the 2/3 to the 6 and then to the negative 9.
Apply this to the following problems: A blueprint has a scale of 1 inch=12 feet. Find the actual length represented by each length represented by each length of this blueprint.
5)3/4 inch
6)1 1/2 inches
7)2 1/8 inches
Im not sure how to do those but I think you have to change each of them to like units and multiply, so 3/4 times 12. Im not sure how to do those at all.
Apply this to the following problems: A blueprint has a scale of 1 inch=12 feet. Find the length on the blueprint needed to represent each length.
8)6 feet
9)24 feet
Thanks in advance for any help that anyone could give me.
Thanks again,
Ryan