Unit Test — Unit test Answers

Use the dot product to find when v = .a.-1c.b.-3d.

Write the ordered pair that represents . Then find the magnitude of .

and have different, but not opposite directions. has a magnitude of 7 and has a magnitude of 6. What must be true about and ?

Determine the projection of in the direction.a.c.b.d.

Find an equation equivalent to r = in rectangular coordinates.a.c.b.d.

Given vectors and , find in terms of unit vectors and .a. c.b.d.

Determine which equation is belongs to the graph of the limacon curve below.[-5,5] by [-5,5]

Determine all numbers at which the function is continuous.

Set up a table of values and then graph the line from its parametric form.a.c.b.d.

Write parametric equations of the line .a.c.b.d.

Find the rectangular coordinates of the point .a.c.b.d.

An airplane is flying due west at a velocity of 100 m/s. The wind is blowing out of the south at 5 m/s. What is the magnitude of the airplane’s resultant velocity?a.c.b.d.

Explain why f(x) = , is not continuous at x = 0.

Determine the maximum r-value of the polar equation .a.c.b.d.

Write the equation of the line with the parametric equations and in slope-intercept form.a.c.b.d.

Explain why f(x) = is not continuous at x = 3.

The graph of r = -3 + 5cos is symmetric about the __________.

Devin’s friend Ryan lives 2 blocks west and 5 blocks south of Devin. Devin’s friend Andy lives 7 blocks east and 2 block north of Devin. How far do Ryan and Andy live from each other?

Find an equation equivalent to 2x + 3y = 6 in polar coordinates.

Write the polar coordinates (3, ) in rectangular form.