Kameon
04.07.2019 •
Mathematics
At which points does the graph of f(x)=2x−4 cross the x-axis and y-axis?
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Ответ:
crosses x-axis at (2, 0 ) and y-axis at (0, - 4 )
To find where the graph crosses the x and y axes ( intercepts )
• let x = 0, in the equation for y- intercept
• let y = 0, in the equation for x- intercept
x = 0 : y = 0 - 4 = - 4 ⇒ (0, - 4 )
y = 0 : 2x - 4 = 0 ⇒ 2x = 4 ⇒ x = 2 ⇒ (2, 0 )
Ответ:
49.94 + 22.473 = 72.413
selling price = $72.40