Understanding Contextual Graphs: Distance, Velocity, and Financial Graphs

The video tutorial covers three main types of graphs: distance-time, velocity-time, and financial graphs. It explains how distance-time graphs record an object's journey and how the gradient represents speed. For velocity-time graphs, the gradient indicates acceleration, and the area under the graph shows the distance traveled. Financial graphs are used for currency conversions and cost comparisons, with examples provided for understanding conversion rates and comparing costs.

What does the gradient of a distance-time graph represent?

• Distance

• Speed

• Time

• Acceleration

How can you determine the speed at a specific point on a nonlinear distance-time graph?

• By drawing a tangent and finding its gradient

• By measuring the height of the curve

• By calculating the area under the curve

• By counting the number of peaks

In a velocity-time graph, what does the area under the graph represent?

• Speed

• Acceleration

• Distance traveled

• Time elapsed

What is the primary use of financial graphs in the context of currency conversions?

• To determine the speed of transactions

• To calculate conversion rates and predict future costs

• To measure the distance between currencies

• To find the time taken for conversions

When comparing costs using financial graphs, what does it mean if one line is below another?

• The cost is unpredictable

• The cost is higher

• The cost is lower

• The cost is the same