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A linear function crosses the x-axis when x= -3 and the y axis when y = 12
Write the equation of the line.

Respuesta :

Answer:

y = m x + b       equation of straight line

If x = 0    then

12 = b    and we have y = m x + 12

If y - 0 then

0 = m (-3) + 12   and m = 4

y = 4 x + 12 is the final equation

Check:

let x = -3    then y = 0      as specified

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