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If y varies directly as x^2 and y = 448 when x = 8, what is the value of y when x = 9? a. 567 b. 72 c. 504 d. 56 *edited to fill in missing info*
old question but will respond to help out future users in a direct variation between two variables (let's say, b varies directly as a, then a = kb where k is a constant) applying this logic to the problem, y = kx^2 for y = 448 and x = 8, plug them in and solve for k. once you have k, take x = 9 and plug in x and k to find y
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