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2 answers:
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Answer:
Third option is correct. Scale factor 3 ; enlargement.
Step-by-step explanation:
It is given that the figure A'B'C'D' is a dilation of figure ABCD.
We know that after dilation the corresponding sides of image and preimage are in the same proportion.
The image of AD is A'D'.
From the figure it is noticed that the A(-1,2), D(-1,-1), A'(-3,6) and D'(-3,-3).
Distance formula is
Scale factor is constant which represents the relation between image and preimage.
Therefore the scale factor is 3.
If k>0 it means enlargement and if k<0 it means reduction. Therefore third option is correct.
Answer:
Additional <em>26</em> pendants are to be sold to make profit.
Step-by-step explanation:
Rent of booth at the craft fair = $200
Cost of material for each pendant = $7.80
Let Kelsey makes number of pendants.
To calculate the total spending, we have to add the rent of booth at the craft fair and cost of material for number of pendants.
Cost of material for number of pendants = Cost of material for each pendant multiplied by number of pendants
Cost of material for number of pendants = $7.80
So, total cost = $200 + $7.80
Now, each pendant is sold at $13.50
So, total money made by selling pendants = $13.50
For making profit, total money made must be greater than the total cost.
Therefore, the inequality becomes:
Let us solve the inequality now:
So, at least 36 pendants are to be sold to make a profit.
Additional 36-10 = <em>26</em> pendants are to be sold to make profit.