Mathematics 8 Periodical Test

What is a Rectangular Coordinate System?

• It is a coordinate system that is used for naming points in a plane.

• It is a coordinate system that is used for graphing linear functions.

• It is a coordinate system that is used to determine the location of a point by using a single number.

• It is a coordinate system that is composed of two perpendicular number lines that meet at a point of origin.

How many quadrants does a Rectangular Coordinate System have?

• 2

• 4

• 6

• 8

Which among these mathematicians was the Cartesian Plane named after?

• Euclid

• Blaise Pascal

• Pythagoras

• Rene Descartes

What do you call the vertical number line in the Cartesian plane?

• y-axis

• origin

• x-axis

• quadrant

For the coordinates of the point in quadrant III, the x-value and y-value are always _____ and ______, respectively.

• negative, positive

• positive, negative

• negative, negative

• positive, positive

The coordinates of the origin in the coordinate plane are ___________.

• (0,1)

• (0,0)

• (1,0)

• (1,1)

Point (3, 4) is an example of _______.

• an abscissa

• an ordinate

• an ordered pair

• a point of origin

Which of the following is the standard form of a linear equation in two variables?

• 𝑦 = 𝑚𝑥 + 𝑏

• 𝑦 = 𝑚𝑥 - 𝑏

• 𝐴𝑥 + 𝐵𝑦 = 𝐶

• 𝐴𝑥 − 𝐵𝑦 = C

What is 𝐶 in the equation 𝐴𝑥 + 𝐵𝑦 = 𝐶?

• coefficient

• slope

• constant

• variable

Which of the following is a linear equation in two variables?

• 𝑥 − 1 y = 5

• 𝑥 + 6y3= 9

• x− 2𝑦 = 7

• 3𝑥 + 5y= 2