Use the geometric interpretation of slope (rise divided by run) to find the slope of the line. Then, by identifying the y-intercept from the graph, write the slope-intercept form of the equation of the line.
A. y = - x - 3
B. y = - x + 3
C. y = x - 3
D. y = x + 3
Answer: C
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Determine the vertex and the x-intercepts. Then sketch the graph.y = x2 + 2x
A. 
Vertex: (- 1, - 1);
x-intercepts: (0, 0) and (-2, 0)
B. 
Vertex: (1, 1);
x-intercepts: (0, 0) and (2, 0)
C. 
Vertex: (1, - 1);
x-intercepts: (0, 0) and (2, 0)
D. 
Vertex: (- 1, 1);
x-intercepts: (0, 0) and (-2, 0)
For the point given in rectangular coordinates, find equivalent polar coordinates 
for 
and 
(6
, 6)
A. (12, 30°) B. (24, 30°) C. (6, 45°) D. (12, 60°)
For the functions f(x) and g(x), determine the domain of (f + g)(x) (the sum of f and g).f(x) = 
, g(x) = -8x - 5
A. {x ? x is a real number} B. {x ? x is a real number and x ? 5} C. {x ? x is a real number and x ? 10} D. {x ? x is a real number and x ? -10}
Graph the inequality.
+ 
? 1
A. 
B. 
C. 
D. 