1. Warm Up Week 21

2. Monday
Justin deposited $5,000 into a certificate of deposit (CD) that earns 2.5% interest compounded annually. What will be the value of his CD after 3 years?
A. $5,375.00
B. $5,384.45
C. $5,463.64
D. $15,375.00
Is triangle A’B’C’ a dilation of triangle ABC?

3. Tuesday
Find the simple interest earned on $2800 deposited in a bank at 2% annual interest after 5 years.
Andrew graphed the triangle X′Y′Z′ by dilating triangle XYZ. Which of the following must be true?
A. The ratios of corresponding sides of triangles XYZ and X′Y′Z′ are proportional.
B. The area of triangle X′Y′Z′ is greater than the area of triangle XYZ.
C. Triangle XYZ is congruent to triangle X′Y′Z′.
D. Triangle XYZ is an isosceles triangle.

4. Wednesday
Jessie deposited $2,500 into a savings account that pays 3% simple interest per year. How much interest does she earn per year on the investment?
A. $75 C. $2,503.00
B. $2, D. $7,500.00
The vertices of a triangle are located at the points A(0, 1), B(2, 4) and C(3, 0). The triangle is translated 5 units down to obtain triangle A′B′C′. What are the coordinates of the vertices of triangle A′B′C′?
A. A′(0, -4), B′(2, -1), C′(3, -5)
B. A′(0, 6), B′(2, 9), C′(3, 5)
C. A′(-5, 1), B′(-3, 4), C′(-2, 0)
D. A′(5, 1), B′(7, 4), C′(8, 0)

5. Thursday
A credit card company charges compound interest annually on any unpaid debts at 5%. Mr. Brian now has outstanding debt of $4200. What will be his outstanding debt 3 years from now?
What would be the orientation of the figure below after a reflection across the x-axis?

6. Friday
Find the balance at the end of 4 years if $10000 is deposited at the rate of % simple interest.
The point (-2, -3) is rotated 180 degrees about the origin. What are the coordinates of the resulting image?
A. (-2, 3) C. (2, -3)
B. (2, 3) D. (3, 2)