Solve the problem.The following scatter diagram shows heights (in inches) of children and their ages.Height (inches)
Age (years)What happens to height as age increases?
A. Height increases as age increases.
B. Height stays the same as age increases.
C. Height and age do not appear to be related.
D. Height decreases as age increases.
Answer: A
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Graph the equation. Include the coordinates of any local and absolute extreme points and inflection points.y = 4x2 + 16x
A. absolute minimum: (-2,-16)
no inflection points
B. absolute minimum: (4,-16)
no inflection points
C. absolute minimum: (-4,-16)
no inflection points
D. absolute minimum: (2,-16)
no inflection points
Solve the problem.Consider the following simplified digital photograph that has a 3 × 3 grid with four gray levels numbered from 0 to 3. It shows a letter Y in dark gray on a white background.
Let A be the 3 × 3 matrix that represents this figure digitally. Find the matrix B such that A + B will represent the entire picture becoming one gray level darker.
A. 
B. 
C. 
D. 
Completely factor the polynomial.4x3 + 16x2 + 4x + 16
A. 4(x2 + 1)(x + 16) B. 4(x2 + 1)(x + 4) C. (4x2 + 4)(x + 4) D. 4(x2 + 4)(x + 4)
Use the distributive law to write an equivalent expression.3(x + 2 + 3y)
A. 3x + 6 + 3y B. 3x + 2 + 3y C. 3x + 6 + 9y D. x + 6 + 9y