Geometry Coordinate Geometry & Transformations 3

Question 1

A figure is rotated 90 degrees counterclockwise about the origin. Point (2, 3) maps to?

Accepted Answer

(-3, 2)

Answer

(3, -2)

Answer

(-2, -3)

Answer

(3, 2)

Question 2

Which lines are parallel?

Accepted Answer

y = 2x + 1 and y = 2x - 4

Answer

y = 2x and y = -2x

Answer

y = 3x and y = x/3

Answer

y = x + 1 and y = -x + 1

Question 3

Two lines are perpendicular if their slopes are 3 and what value?

Accepted Answer

-1/3

Answer

3

Answer

1/3

Answer

-3

Question 4

A dilation with scale factor 3 centered at the origin maps (2, -1) to?

Accepted Answer

(6, -3)

Answer

(5, 2)

Answer

(2/3, -1/3)

Answer

(6, 3)

Question 5

What is the length of the segment from (-3, 0) to (3, 0)?

Accepted Answer

6

Answer

0

Answer

3

Answer

9

Question 6

Reflecting (4, 5) across the line y = x gives?

Accepted Answer

(5, 4)

Answer

(-4, -5)

Answer

(-5, -4)

Answer

(4, -5)

Question 7

What is the y-intercept of the line 2x + 3y = 12?

Accepted Answer

4

Answer

6

Answer

12

Answer

-4