X - Y = 5 - Y = - X + 5 Y = X - 5 ==========Now it is a function because it passes the vertical line test.
log5x
y=(6x-5)/3
Put in function form. X = 5 + Y 5 + Y = - X Y = - X - 5 ==================The ordered pairs.
The inverse function is obtained by interchanging corresponding values of x and y and then transposing the resulting equation to make y the subject. f(x) = y = 8x + 5 therefore f-1(x) = x = 8y + 5 : 8y = x - 5 : y = (x - 5)/8 The inverse function of y = 8x + 5 is y = (x - 5)/8
X - Y = 5 - Y = - X + 5 Y = X - 5 ==========Now it is a function because it passes the vertical line test.
-2
Yes.
7
5
log5x
y=(6x-5)/3
Put in function form. X = 5 + Y 5 + Y = - X Y = - X - 5 ==================The ordered pairs.
determine whether each relation is a function y equals -8
The inverse function is obtained by interchanging corresponding values of x and y and then transposing the resulting equation to make y the subject. f(x) = y = 8x + 5 therefore f-1(x) = x = 8y + 5 : 8y = x - 5 : y = (x - 5)/8 The inverse function of y = 8x + 5 is y = (x - 5)/8
y = x This is a line and a function. Function values are y values.
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