Answer:
- A → B: 1/3
- correct
- A → B: 2/5
Step-by-step explanation:
It is clear from your answer to the second part that you know the A→B scale factor is the reciprocal of the B→A scale factor. Use that fact for the other two parts of the question.
- A → B = 1/3; B → A = 3
- A → B = 2; B → A = 1/2
- A → B = 2/5; B → A = 5/2
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It is convenient to find a unit length (or the smallest length) on the smaller figure, then see how much that is multiplied by to get the larger figure.
- B : A = 1 : 3
- A : B = 1 : 2
- B : A = 2 : 5
Once you have these ratios, you need to determine what the notation A→B is supposed to mean. Here, we presume it means B/A.
Divide the known y's by the known x's:
1/3 = 1/3
2/6 = 1/3
4/12 =1/3
The Y values are 1/3 of the x values.
Multiply the know x value by 1/3 to get y:
y = 9 x 1/3 = 3
y = 3
Answer:
4 times 2+3-1=10
Step-by-step explanation:
Answer:
4 1/12
Step-by-step explanation:
