David W. answered • 03/21/20
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Brooke B.
asked • 03/21/20x^2 − 16x + 63 /(− 6x + 42)
lim x → 7 Evaluate the limit
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Denise G. answered • 03/21/20
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If you plug is 7 for x into the equation, you get 0 in the denominator, which is undefined. So first, you need to factor this and see if it can be simplified
[(x-9)(x-7)]/[-6(x-7)] The x-7 factors will cancel out. This leaves
(x-9)/-6 Now you can plug in 7 for x
(7-9)/-6 = -2/-6 = 1/3
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