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Let x and y be the price of the fridge and the freezer before the sale, respectively.
Since the sale offers 15% off everything, Kristianne actually paid the remaining 85%
We are given that the freezer costed 250 before the sale, i.e. y=250. Plug this value in the equation to get
We can manipulate this expression to get
function : y = (-x) - 6
<u>Find x-intercept</u> :
<u>Find y-intercept</u> :
mark these two points on both the axis and draw a straight linear graph.
passes coordinates : (0, -6), (-6, 0)