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MATH1720HomeworkChapter8Section6

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 1. 

Considering the given value of t, choose the ordered pair that lies on the graph of the given pair of parametric equations.
x =  -4t +  8, y =  3t -  3; t =  -7
a.
( 20,  -18)
c.
( 4,  0)
b.
( -3,  -7)
d.
( 36,  -24)
 

 2. 

Considering the given value of t, choose the ordered pair that lies on the graph of the given pair of parametric equations.
x = sin t, y = cos t; t = mc002-1.jpg
a.
mc002-2.jpg
c.
mc002-4.jpg
b.
mc002-3.jpg
d.
mc002-5.jpg
 

 3. 

Considering the given value of t, choose the ordered pair that lies on the graph of the given pair of parametric equations.
x = t, y = mc003-1.jpg; t =  -2
a.
( -2,  4)
c.
( 2,  8)
b.
( -8,  -2)
d.
( -2,  -8)
 

 4. 

Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.
x =  3t, y = t  + 1, for t in [-2, 3]
      mc004-1.jpg
a.
mc004-2.jpg
y = mc004-3.jpgx  - 1, for x in [ -6,  9]
b.
mc004-4.jpg
y = mc004-5.jpgx  + 1, for x in [ -6,  9]
c.
mc004-6.jpg
y =  -3x  + 1, for x in [ -9,  6]
d.
mc004-7.jpg
y = x2 + 1, for x in [-2, 2]
 

 5. 

Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.
x = t2, y = mc005-1.jpg  + 2, for t in [0, 4]
      mc005-2.jpg
a.
mc005-3.jpg
y = mc005-4.jpg  + 2, for x in [0, 16]
b.
mc005-5.jpg
y = x2  - 1, for x in [0, 2]
c.
mc005-6.jpg
y = mc005-7.jpg  - 1, for x in [0, 16]
d.
mc005-8.jpg
y = mc005-9.jpgx  - 1, for x in [0, 16]
 

 6. 

Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.
x =  8 sin t, y =  8 cos t, for t in [0, 2
ð]
      mc006-1.jpg
a.
mc006-2.jpg
y2 - x2 =  64, for x in [ -8,  8]
b.
mc006-3.jpg
y
= mc006-4.jpg = 64, for x in [-8, 8]
c.
mc006-5.jpg
x2 + y2 =  64, for x in [ -8,  8]
d.
mc006-6.jpg
y = x2 - 9, for x in [-2, 2]
 

 7. 

Use a table of values to graph the plane curve defined by the following parametric equations. Find a rectangular equation for the curve.
x = mc007-1.jpg, y =  4t  + 3, for t in [0, 4]
      mc007-2.jpg
a.
mc007-3.jpg
y =  -3x  + 19, for x in [0, 2]
b.
mc007-4.jpg
y =  4x2  + 3, for x in [0, 2]
c.
mc007-5.jpg
y =  -3x2  + 19, for x in [0, 2]
d.
mc007-6.jpg
y =  3x2  + 4, for x in [-1, 2]
 

 8. 

Find a rectangular equation for the plane curve defined by the parametric equations.
x = mc008-1.jpg, y = 2t + 5
a.
y = 2x2 - 5
c.
y = 2x2 + 5
b.
y = 2mc008-2.jpg - 5, x = 0
d.
y = 2mc008-3.jpg + 5, x = 0
 

 9. 

Find a rectangular equation for the plane curve defined by the parametric equations.
x = t - 3, y = t2 + 5
a.
y = x2 - 6x - 14
c.
y = x2 + 14
b.
y = x2 + 6x + 14
d.
y = x2 - 14
 

 10. 

Find a rectangular equation for the plane curve defined by the parametric equations.
x = 5 tan t, y = 4 cot t
a.
y = mc010-1.jpg cos x
c.
y = mc010-3.jpg sin x
b.
y = mc010-2.jpg
d.
y = mc010-4.jpg
 

 11. 

Find a rectangular equation for the plane curve defined by the parametric equations.
x = t2 + 1, y = t2 - 1
a.
y = x2 - 2,  x = 1
c.
y = x2 + 2, x = 1
b.
y = x - 2, x = 1
d.
y = x + 2, x = 1
 

 12. 

Give two parametric representations for the equation of the parabola.
y = mc012-1.jpg  + 10
a.
x = t, y = mc012-2.jpg  + 10 for t in (-8, 8); x = t  + 5, y = mc012-3.jpg  + 10 for t in (-8, 8)
b.
x = t, y = mc012-4.jpg  + 10 for t in (-8, 8); x = t  - 5, y = mc012-5.jpg  + 10 for t in (-8, 8)
c.
x = t, y = mc012-6.jpg  + 10 for t in (-8, 8); x = t  + 5, y = mc012-7.jpg  + 10 for t in (-8, 8)
d.
x = t, y = mc012-8.jpg  + 10 for t in (-8, 8); x = t  - 5, y = mc012-9.jpg  + 10 for t in (-8, 8)
 

 13. 

Give two parametric representations for the equation of the parabola.
y = mc013-1.jpg  - 4x  + 7
a.
x = t, y = mc013-2.jpg  - 4t  - 7 for t in (-8, 8); x = t  - 2, y = mc013-3.jpg  - 3 for t in (-8, 8)
b.
x = t, y = mc013-4.jpg  + 4t  + 7 for t in (-8, 8); x = t  - 2, y = mc013-5.jpg  + 3 for t in (-8, 8)
c.
x = t, y = mc013-6.jpg  - 4t  + 7 for t in (-8, 8); x = t  - 2, y = mc013-7.jpg  + 3 for t in (-8, 8)
d.
x = t, y = mc013-8.jpg  + 4t  + 7 for t in (-8, 8); x = t  - 2, y = mc013-9.jpg  - 3 for t in (-8, 8)
 

 14. 

Graph the cycloid for t in the indicated interval.
x =  2(t - sin t), y=  2(1 - cos t), 0 = t = 6
ð

mc014-1.jpg
a.
mc014-2.jpg
c.
mc014-4.jpg
b.
mc014-3.jpg
d.
mc014-5.jpg
 

 15. 

Graph the cycloid for t in the indicated interval.
x =  6t -  6 sin t, y=  6 -  6 cos t, -2
ð = t = 2ð

mc015-1.jpg
a.
mc015-2.jpg
c.
mc015-4.jpg
b.
mc015-3.jpg
d.
mc015-5.jpg
 

 16. 

A projectile is fired with an initial velocity of  500 feet per second at an angle of 45° with the horizontal. To the nearest 10 feet, find the horizontal distance covered by the projectile.
a.
8320 ft
c.
7470 ft
b.
8550 ft
d.
7810 ft
 

 17. 

A projectile is fired with an initial velocity of  300 feet per second at an angle of 70° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.)
a.
17.6 sec
c.
14.2 sec
b.
20.4 sec
d.
21.7 sec
 

 18. 

A projectile is fired with an initial velocity of  400 feet per second at an angle of 70° with the horizontal. To the nearest foot, find the maximum altitude of the projectile.
a.
2191 ft
c.
2224 ft
b.
2200 ft
d.
2208 ft
 

 19. 

True or false? The parametric equations  x = t3, y = t3 - 8 will graph a  circle.
a.
True
b.
False
 



 
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