A loan of $4,000 was repaid at the end of 10 months with a check for $4,270. What annual rate
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Recall that a dilation with center (0, 0) and scale factor maps
onto
.
Now, triangle ADE is formed by
Whereas triangle ABC is formed by
In other words, the coordinates of B and C can be obtained by multiplying by 2 the coordinates of D and E.
This means that you get ABC from ADE by dilating with center (0,0) and scale factor 2.