Grade 8 - Math QUiz

1. You are asked by your teacher to graph the linear equation whose slope and a point are given. What will you do first?

• Use the slope to identify the rise and the run.

• Draw a line passing the points.

•   Plot the given point.

• From the given point, count out the rise and run.

1. Which among the choices is the abscissa of a point?

•     𝑥− intercept

•   𝑦−coordinate

• 𝑥− coordinate

• 𝑦− intercept

1. Describe the graph of the linear equation 𝑦 = −6.

• It is decreasing from left to right.

•    It is increasing from left to right.

•      It is a horizontal line.

•   It is a vertical line.

Describe the slope of the graph.

• Positive

• Negative

• Undefined

• Zero

Describe the slope of the graph.

• Positive

• Negative

• Zero

• Undefined 

1. Describe the slope of the graph.

• Negative

• Positive

•   Zero

• Undefined

1. What are the intercepts of the linear equation whose graph is shown?

• 𝑎 =−2; 𝑏 =−4

•   𝑎 =−4; 𝑏 =−2

• 𝑎 =4; 𝑏 =−2

•   𝑎 =2; 𝑏 =−4

Which line passes through the points (−1,0) and (0,−2)?

•      𝑦 =2𝑥+2

•   𝑦 =−2𝑥−2

•   𝑦 =2𝑥−2

•    𝑦 =−2𝑥+2

Which of the following is true about the graph of a linear equation?

• It is a hyperbola.

• It is a parabola.

•   It is an ellipse.

•    It is a line.

1. Describe the graph of the linear equation 𝑥 = −2.

• It is decreasing from left to right.

•   It is increasing from left to right.

• It is a horizontal line.

•   It is a vertical line.