Write a linear inequality that describes the shaded region.
A. y ? -2x - 2
B. y ? 2x - 2
C. y ? -2x + 2
D. y ? 2x - 2
Answer: B
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Write the equation of the circle in standard form. Find the center and radius. Then sketch the graph.x2 + y2 + 6x - 4y - 12 = 0
A. (x - 3)2 + (y - 2)2 = 25
(h, k) = (3, 2), r = 5
B. (x + 3)2 + (y + 2)2 = 25
(h, k) = (-3, -2), r = 5
C. (x - 3)2 + (y + 2)2 = 25
(h, k) = (3, -2), r = 5
D. (x + 3)2 + (y - 2)2 = 25
(h, k) = (-3, 2), r = 5
Determine whether or not the ordered pair is a solution of the linear equation.3x + y = 11; (3, 2)
A. Yes B. No
Complete the square and write the equation in standard form. Then give the center and radius of the circle and graph the equation.x2 + y2 + 6x + 8y + 21 = 0
A. (x - 3)2 + (y + 4)2 = 4
center (3, -4), r = 2
B. (x + 3)2 + (y - 4)2 = 4
center (-3, 4), r = 2
C. (x + 3)2 + (y + 4)2 = 4
center (-3, -4), r = 2
D. (x - 3)2 + (y - 4)2 = 4
center (3, 4), r = 2
Find the equation of the line passing through the indicated two points. Write the equation in slope-intercept form.(4, -7) and (9, -9)
A. y = 
x - 
B. y = - 
x - 
C. y = 
x - 
D. y = - 
x - 