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BabaBlast [244]
3 years ago
14

Find the equation of the line that is perpendicular to y = 1/4 x – 2 and passes though the point (5, –2).

Mathematics
2 answers:
zlopas [31]3 years ago
6 0

\textsf{Let y = ax + b the line we want to find.}

\textsf{We know that the slope of y = ax + b is the inverse of the slope of } \mathsf{ y = \frac{1}{4}x - 2.}

\textsf{Thus:}

\mathsf{a = \dfrac{1}{\frac{1}{4}} = 4}

\textsf{As y = 4x + b passes thought (5, -2):}

\mathsf{-2 = 4 \cdot 5 + b  \Rightarrow 20 + b = -2 \Rightarrow b = -22}

\textsf{Hence the line y = 4x - 22 is perpendicular to }\mathsf{y=\frac{1}{4}x - 2}\textsf{ and passes for the point (5, -2).}

STALIN [3.7K]3 years ago
3 0

Answer:

y=-4x+18

Step-by-step explanation:

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