The square root of 361=19
The equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.
<h3>What is the equation of a line passing through two given points in a 2-dimensional plane?</h3>
Suppose the given points are (x_1, y_1) and (x_2, y_2), then the equation of the straight line joining both two points is given by

The graph of the picture shows two clear points (4.5. 0) and (0, 9)

Hence, the equation of line passing through points (4.5. 0) and (0, 9) is y = -2x + 9.
Learn more about straight-line equations here:brainly.com/question/380976
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The answer of the given questions
a) 39 and b) 63
Step-by-step explanation:
Here are the solutions of given questions
a) 
=64-25
=39
b) 
= 36+27
= 63