Practice Test

Question 1

If cap t is equal to the 2 by 2 matrix row 1, 0 1 row 2, 1 0 is a transformation matrix, which expression correctly applies cap t to v ?

Revolt · Accepted Answer

D: the 2 by 2 matrix row 1, 0 1 row 2, 1 0 times the 2 by 1 column matrix row 1 negative 4 row 2 negative 5

Question 2

Which image is a reflection over the line y is equal to x of triangle 1?

Revolt · Accepted Answer

C: Image with description On a coordinate plane,the x-axis ranges from negative 5 to 5 in increments of 1, and the y-axis ranges from negative 4 to 4 in increments of 1.  A triangle has vertices at (1, 1), (1, 4), and (3, 4). The triangle lies in the first quadrant.

Question 3

What is the component form and direction of the vector shown?

Revolt · Accepted Answer

A: components negative 7 comma 3  and  157 degrees

Question 4

Which graph represents the parametric equations x is equal to 1 minus t squared and y is equal to 2 t , where 0 is less than or equal to t comma t is less than or equal to 5 ?

Revolt · Accepted Answer

D: Image with description On a coordinate plane, a curve starts at (1, 0) and curves up through (0, 2) to (negative 24, 10).

Question 5

A disc spins at a rate of 6 point 4 revolutions per minute. To the nearest tenth, what is the linear velocity, in meters per minute, of a point on the disc that is 3 cm from the center of the disc?

Revolt · Accepted Answer

1.2

Question 6

What is the rectangular form of the parametric equations x is equal to 6 t and y is equal to the fraction with numerator t squared and denominator 4 ?

Revolt · Accepted Answer

A: y is equal to the fraction with numerator x squared and denominator 144

Question 7

A vector in standard position has its terminal point at open paren 7 comma negative 4 close paren What is the magnitude of the vector?

Revolt · Accepted Answer

A: square root of 65

Question 8

Let vector a with components negative seven comma three and vector b with components negative two comma negative twelve , and c is equal to A plus b What is the magnitude and direction angle of vector c ?

Revolt · Accepted Answer

A: magnitude of vector c is equal to 9 square root of 2 ;  theta is equal to 135 degrees; C: magnitude of vector c is equal to 9 square root of 2 ;  theta is equal to 225 degrees

Question 9

Let vector a with components negative seven comma three and vector b with components negative two comma negative twelve , and c is equal to A plus b What is the magnitude and direction angle of vector c ?

Revolt · Accepted Answer

B: magnitude of vector c is equal to 9 square root of 2 ;  theta is equal to 225 degrees; D: magnitude of vector c is equal to 9 square root of 2 ;  theta is equal to 135 degrees

Question 10

Two planes take off from the same airport at approximately the same time. Plane A has an airspeed of 600 mph and travels in the direction cap s 20 degrees cap w Plane B has an airspeed of 450 mph and travels in the direction cap n 35 degrees cap e Which diagram represents the distance, x , between the planes?

Revolt · Accepted Answer

D: Image with description On a coordinate plane, a vector labeled 450 miles per hour goes up and to the right in quadrant 1 and forms angle alpha = 35 degrees with the y-axis. A vector labeled 600 miles per hour goes down and to the left in quadrant 3 and forms angle beta = 20 degrees with the y-axis. Vector x goes from terminal point 600 miles per hour to terminal point 450 miles per hour.

Practice Test Answers

More from this Course

TRY EDGENUITY HACKS