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Calculus
Practice Quiz 270

Click the circle next to the correct response.
Be sure to click the OK button to continue.

Find dy/dx .

1.  y = x 1/4 @ (1,1)
  .2500000547
1/4
1		 2.  y =(4 - 3x)9 @ (1,1)
  -27.00226803
-12
-27
3.  y =(4 - 3x)(x2 + 3x)2 @ (1,1)
  56
-1
-8		 4.  y = sin(6x) @ x = /6
-5.999964
3.14
-6
Choose the best answer.
5.  Use linearization to estimate
the value of  .
6.33333
6.32455
6.35714		 6. Find the linearization L(x) for
f(x) = 2x2 + 4x + 3 @ x = 2.
 f(x) = 19x + 12
f(x) = 12x - 5
f(x) = 12x + 19
7.  For x2y + xy2 = -6 @ (1,1), find the equation of the line tangent.
y - 1 = -(x - 1)
y + 1 = -3(x + 1)
y - 1/5= -1/3x + 3

8.  For y = 1 / (x + 2)  , find the equation
of the line normal @ x = 3.
y - 1/5 = 25(x - 3)
y - 1/5 = -1/25(x - 3)
y - 1/5= -1/3x + 3

Convert to radian measure.
9. 30°
 /6
/3
/30

10. 540°
 3
/3
-3
Convert to degree measure.
11. 3/4
 135°
2.35619449°
-2.6011065° 		12. 5/8
 1.963495408°
112.5°
-2.6011065°
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