Find the slope and the y-intercept.-4x + 5y = -9
A. m = 20; (0, -45)
B. m = 
; 
C. m = 4; (0, -9)
D. m = 
; 
Answer: B
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Provide an appropriate response.A catamaran is running along a course with the wind providing a constant force of 70 lb. The only other force acting on the boat is resistance as the boat moves through the water. The resisting force is numerically equal to two times the boat's speed, and the initial velocity is 1 ft/sec. What is the maximum velocity in feet per second of the boat under this wind?
A. The maximum velocity occurs when 
= 18 or v = 0 ft/sec
B. The maximum velocity occurs when 
= 35 or v = 0 ft/sec
C. The maximum velocity occurs when 
= 0 or v = 18 ft/sec
D. The maximum velocity occurs when 
= 0 or v = 35 ft/sec
Graph the equation. Include the coordinates of any local extreme points and inflection points.y = x + cos 2x, 0 ? x ? ?
A. local minimum: 
local maximum: 
inflection point: 
B. local minimum: (1.444, -0.246)
local maximum: (0.126, 1.031)
inflection points: (0.785, 0.393), (2.356, 1.178)
C. no local extrema
inflection point: 
D. local minimum: 
local maximum: 
inflection points: 
, 
Find the exact value by using a half-angle identity.cos 
A. 
B. 
C. 
D. 
Graph the linear inequality in two variables.x - y > -4
A. 
B. 
C. 
D. 