Please answer the following question

asked May 8, 2019 14.1k views

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Consider the function
y=x^2-4x-21. See attached file for graph.

The y-intercept you can find substituting x=0 (or using graph):

$y=0^2-4\cdot 0-21=-21.$

Answer: y-intercept is (0,-21).

Bitsian answered May 13, 2019

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