Study prep for Unit 1 test: Units 1-3 to 1-9

Question 1

Altitude and
height (related to altitude)?

Answer 1

Segment from a vertex perpendicular to the line containing the opposite side.
Height - length of the altitude

Question 2

Coordinate plane?

Answer 2

A plane containing a rectangular coordinate system.

Question 3

Distance formula notation?

Answer 3

Notation :
d AB with line segment over it.
AB no line segment over it.
d

Question 4

Midpoint formula notation?

Answer 4

Notation:
M AB with line segment over it.
M.
M p1,p2 with line segment over it.

Question 5

Origin?

Answer 5

The point of intersection.
Notation: 0.

Question 5

Quadrants?

Answer 5

The 4 sections in the coordinate plane.
Notation: Roman numerals 1-4.

Question 6

Y-axis?

Answer 6

The vertical line, positive up. The y-coordinate is also called the ordinate.
Notation: y

Question 6

Axes?

Answer 6

2 perpendicular number lines in the coordinate plane that divide the plane into 4 sections.
Notation: x and y axes.

Question 7

X-axis?

Answer 7

The horizontal line, positive to the right. The x-coordinate is also called the abscissa.
Notation: x