The equation of a line is given by 𝑦=𝑎(𝑥−5)+4.If the 𝑦-intercept is −6, find the value of 𝑎.
Question
The equation of a line is given by 𝑦=𝑎(𝑥−5)+4.If the 𝑦-intercept is −6, find the value of 𝑎.
Solution
Para encontrar el valor de en la ecuación de la línea dado que la intersección con el eje es , sigue estos pasos:
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La intersección con el eje ocurre cuando . Sustituye en la ecuación de la línea:
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Simplifica la expresión:
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Sabemos que la intersección con el eje es . Por lo tanto, sustituimos en la ecuación:
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Resuelve para :
Por lo tanto, el valor de es .
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