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In this lesson, we will learn how to find the x- and y-coordinates of a point and how to locate a point on an xy-plane given its ordered pair.

Q1:

What is the 𝑥 -coordinate of the blue point?

Q2:

Start at 𝐵 . Go right 7, and then go up 2. What ordered pair represents the position where you are now?

Q3:

The following graph represents the relation between pressure and elevation, where the 𝑥 -coordinate is the elevation in kilometres and the 𝑦 -coordinate is the pressure in bars.

Which quadrant would contain a point that is 11 km below sea level under a pressure of 6 bars?

Q4:

Which quadrant does the point ( − 6 , − 8 ) lie in?

Q5:

Write the coordinates of the location of the monkeys.

Q6:

Which coordinate has NOT been plotted on the coordinate grid?

Q7:

Are the coordinates ( 1 , 3 ) and ( 3 , 1 ) in the same location on a coordinate grid?

Q8:

Q9:

On which of the following graphs is the point 𝑊 ( 1 , 9 ) drawn?

Q10:

The figure shows the map of a zoo. Which animals are located at ( 2 , 5 ) ?

Q11:

A father collected data to determine a relationship between studying hours and break hours for his 3 sons on a single day. His results were as follows:

Bassem:

Fady:

Adel:

Which of the following graphs best describes the given data?

Q12:

A regular, eight-pointed star has been drawn in a coordinate plane with seven of its vertices at ( − 1 , 1 ) , ( 0 , 3 ) , ( 1 , 1 ) , ( 3 , 0 ) , ( 1 , − 1 ) , ( 0 , − 3 ) , and ( − 1 , − 1 ) . Find the coordinates of the remaining point.

Q13:

Bassem is plotting his exercise performance over 4 weeks on a coordinate grid. Each coordinate represents the number of kilometres he swims and the number of kilometres he runs every week. His results were as follows:

week 1: ,

week 2: ,

week 3: ,

week 4: .

Which of the following graphs accurately describes Bassem’s performance?

Q14:

Consider the ordered pairs plotted on this set of coordinate axes.

Is the set of ordered pairs { 𝐴 , 𝐵 , 𝐶 } a function?

Is the set of ordered pairs { 𝐴 , 𝐵 , 𝐷 } a function?

Is the set of ordered pairs { 𝐴 , 𝐶 , 𝐷 } a function?

Q15:

William has plotted five ordered pairs on a set of Cartesian coordinate axes.

Which ordered pair has coordinates