The Gradient of a Straight-Line Graph Is -2

question 1

Multiple Choice

The gradient of a straight-line graph is -2. You know that the graph goes through the point (1, -2) . What is the value of the y-coordinate when x = 3?

• A) 2
• B) 0
• C) -4
• D) -6

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Definitions:

Hot Spot

A location on the Earth's surface that has experienced prolonged volcanic activity, thought to be caused by a rising mantle plume.

Igneous Feature

A geological formation or structure that has been created through the cooling and solidification of magma or lava.

Laccolith

A geological formation resulting from magma pushing up between layers of rock, creating a lens-shaped mass.

Columnar Joints

Natural formations of rock into long, regular columns, typically found in basalt flows, resulting from the cooling and contraction of lava.