Juliana is trying to solve the problem below.The value of a used car is decreasing by $40 per month. How many months will it tak
2 answers:
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Answer:
<em>y = - 3x + 4 </em>
Step-by-step explanation:
m =
y - = m( x -
) Point-slope form
y = mx + b Point-intercept form
(1, 1)
(2, - 2)
m = (- 2 - 1 ) / (2 - 1) = - 3
y - 1 = - 3( x - 1 )
<em>y = - 3x + 4</em>