How can you find the scale factor of a dilation

1 answer:

5 0

Starting with ΔABC, draw the dilation image of the triangle with a center at the origin and a scale factorof two. Notice that every coordinate of the original triangle has been multiplied by the scale factor (x2).Dilation with scale factor 2, multiply by 2.

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Melinda and Marcus are saving money to purchase a present for a friend. Each friend starts with an amount and also saves a speci

Goshia [24]

Let's find the rates at which Melinda and Marcus are saving money and compare them.
Based on the table, we can see that Melinda originally had $75. Then she got $135 in 5 weeks. So the rate of saving money is (135–75)/5 = $12 per week.
This rate is unchanged for the next weeks. As we can see, she got $195 in the next 5 weeks. So she saved $60 more those 5 weeks, or the rate is $60/5 = $12 per week again.

So Melinda saved $12 per week.
As for Marcus, the equation tells us that the rate of saving money is $14 which is the coefficient in front of x.

Hence, the rate at which Melinda is adding to her savings each week is 2$
less than the rate at which Marcus is adding to his savings each week.

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