Translate the sentence into a mathematical equation. Be sure to identify the meaning of all symbols.The surface area of a sphere is 4? times the square of the radius.
A. If S represents the surface area and r the radius, then 4?S = r2.
B. If S represents the surface area and r the radius, then S = ?r2.
C. If S represents the surface area and r the radius, then S = 4?r2.
D. If S represents the surface area and r the radius, then S = 4?r.
Answer: C
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Graph the linear equation, using any appropriate method.
x + 
y = 1
A. 
B. 
C. 
D. 
Divide and, if possible, simplify.
A. x
B. 3x
C. 3x
D. 3x
Evaluate as specified.For f(x) = 32x, find f 
.
A. 4 B. 16 C. 6 D. 8
Graph the quadratic function. Determine the vertex, find the equation of the axis of symmetry, find any x- and y-intercepts, and state the domain and range in interval notation.f(x) = -11x2 - 2x - 12
A. vertex: 
axis of symmetry: x = 
x-intercept: none; y-intercept: 12
domain: (-?, ?); range: 
B. vertex: 
axis of symmetry: x = - 
x-intercept: none; y-intercept: -12
domain: (-?, ?); range: 
C. vertex: 
axis of symmetry: x = - 
x-intercept: none; y-intercept: 12
domain: (-?, ?); range: 
D. vertex: 
axis of symmetry: x = 
x-intercept: none; y-intercept: -12
domain: (-?, ?); range: 
