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Find the x-intercepts of Y = −3(x−5)(x−4)?

a) (5, 0) and (4, 0)
b) (-5, 0) and (-4, 0)
c) (0, 5) and (0, 4)
d) (0, -5) and (0, -4)

User Sansan
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1 Answer

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Final answer:

The x-intercepts of the equation Y = −3(x−5)(x−4) are the points where the graph crosses the x-axis. By setting Y to 0 and solving for x, the x-intercepts are found to be (5, 0) and (4, 0), which corresponds to answer option (a).

Step-by-step explanation:

To find the x-intercepts of the equation Y = −3(x−5)(x−4), we need to set the equation equal to 0 and solve for x. An x-intercept is a point where the graph of the equation crosses the x-axis, which occurs when Y is 0.

So, we set the equation to 0:
0 = -3(x-5)(x-4)

Since the equation is already factored, we can easily find the x-intercepts by setting each factor equal to 0:
(x-5) = 0 and (x-4) = 0

To find the x-intercepts of the equation Y = −3(x−5)(x−4), we set Y to zero and solve for x.

0 = −3(x−5)(x−4)

This equation will be true if either (x-5) or (x-4) equals zero.

To find the x-intercepts, we solve for x:

x-5 = 0 => x = 5

x-4 = 0 => x = 4

Therefore, the x-intercepts of the equation are (5, 0) and (4, 0).

Solving these, we get the solutions x = 5 and x = 4, which means that the x-intercepts are (5, 0) and (4, 0). Hence, the correct answer is (a) (5, 0) and (4, 0).

User Cmilam
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