How to use a graph to draw conversions ?

Question:

A car speedometer manufacturer wants all his speedometers to show both miles per hour and kilometers per hour he draws a graph to show this information 

(a)draw and label the graph with these axes:

Horizontal axis: km/h 0 to 180, 2cm to 20km/h

Vertical axis: mph 0 to 140 , 2c, to 20mph

Use the following information to draw a conversion graph:

20km/h=12.4

100km/h=62mph

use the following information to dra the following conversions:

(b) 30mph

(c)160km/h

Attachment image

1 Answer

Relevance
  • Anonymous
    1 month ago

    Find 30 mph, read over to the line, go the other direction to the km/hr scale, read the value.  Similar method for going from km/hr to mph.

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