PDF chapter test TRY NOW
1. The graph relates temperatures \(y\)(in Fahrenheit degree) to temperatures \(x\)(in Celsius degree).
(a) Find the slope and \(y\) intercept.
Answer:
Slope \(=\) and \(y\) intercept \(=\)
(b) Write an equation of the line.
(c) What is the mean temperature of the earth in Fahrenheit degree if its mean temperature is \(25^{\circ}\) Celsius? \(^{\circ}\) Fahrenheit.
2. Find the equation of a line passing through the point \(A(1,4)\) and perpendicular to the line joining the points \((2,5)\) and \((4,7)\).
Answer:
The equation of the straight line is
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