Unit 7, Lesson 11

Constructing the Coordinate Plane

Accelerated 6

Practice

Problem 1

Write the coordinates of each point.

Coordinate plane, o at origin, horizontal axis -8 to 8 by twos, vertical axis negative 6 to 6 by twos. Point A on the horixontal axis, halfway between 0 and 2. Point B, on the vertical axis, halfway between negative 2 and negative 4. Point C above negative 6 on the horizontal axis, halfway between 4 and 6. Point D halfway between negative 4 and negative 2 on the horizontal axis, halfway between negative 4 and negative 6 on the vertical axis. Point E between negative 2 and zero on the horizontal axis, next to 4 on the vertical axis.

Problem 2

The points , , and are all on the same horizontal line. Write the coordinates of 2 additional points that are on the same horizontal line.

Problem 3

Draw and label an appropriate pair of axes, and plot the points.

A blank coordinate plane with 16 evenly spaced horizontal units and 12 evenly spaced vertical units.

Problem 4

ForLesson 3: Ordering Rational Numbers

Represent each of the following situations with a positive or negative number. Explain what a number with the opposite sign would represent in each situation.

a loss of 4 points
a gain of 50 yards
a loss of $10
an elevation 23 feet above sea level

Problem 5

ForLesson 1: Positive and Negative Numbers

One night, it is warmer in Tucson than it was in Minneapolis. If the temperatures in Tucson and Minneapolis are opposites, what is the temperature in Tucson?

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