Use the graph to determine the equation of the parabola.
A. y = (x + 2)2 + 3
B. y = (x - 2)2 - 3
C. x = (y - 2)2 + 3
D. x = (y + 2)2 + 3
Answer: D
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Express the number in decimal notation.7 × 10-7
A. 0.0000007 B. -700,000 C. 0.00000007 D. 0.000007
Estimate the sum or difference by first rounding each value to the indicated place value.55.017 - 1.8911
round each to the nearest one
A. 54 B. 53 .1 C. 53 .2 D. 53
Solve the problem.The farther someone is from a light source, the less intense its light. The equation I = 
approximates the light intensity from light source Y and I = 
approximates the light intensity from light source Z, where d is measured in meters and I is measured in watts per square meter. Find an expression for the sum of the intensities of light from sources Y and Z.
A. 
B. 
C. 
D. 
Use the figure below to answer the following question(s).
The degree of vertex D is
A. 
.
B. 3.
C. 2.
D. 1.
E. none of these