The graph of a linear function f is shown. Write the equation that defines f. Write the equation in slope-intercept form.
A. y = -2x - 5
B. y = 2x + 5
C. y = 2x - 5
D. y = -2x + 5
Answer: A
Mathematics
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Find all the second order partial derivatives of the given function.f(x, y) = x2 + y - ex+y
A. 
= 2 - y2ex+y; 
= -x2ex+y; 
= 
= - y2ex+y
B. 
= 2 - ex+y; 
= - ex+y; 
= 
= -ex+y
C. 
= 1 - ex+y; 
= - ex+y; 
= 
= -ex+y
D. 
= 2 + ex+y; 
= ex+y; 
= 
= ex+y
Mathematics
Use a calculator to find the value of y in degrees rounded to two decimal places.y = sin-1 0.3814
A. 22.42° B. -22.42° C. 112.42° D. 20.88°
Mathematics
Factor.25x2 - 40x + 16
A. (5x - 4)2 B. (5x + 4)2 C. (25x + 1)(x + 16) D. (5x - 4)(5x + 4)
Mathematics
Plot the point in the xy-plane. Tell in which quadrant or on what axis the point lies.(-4, 1) 
A. 
Quadrant II
B. 
Quadrant III
C. 
Quadrant IV
D. 
Quadrant I
Mathematics