<u><em>Answer:</em></u>
<u><em>Option A is correct</em></u>
<u><em>Step-by-step explanation:</em></u>
<u><em>Our equation is: y = mx - b</em></u>
<u><em>Where m is the slope and b is the y-intercept.</em></u>
<u><em>Now, lets relate to the equation given.</em></u>
<u><em>Given equation: y = 4x - 9</em></u>
<u><em>We are seeing that (m = 4) and (b = -9,0)</em></u>
<u><em>The answer we got is matching with Option A. Therefore, Option A is correct.</em></u>
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