9. Let y=3x+2 a) typically we write points in this scenario as (x,y), not (y,x), why is that? b) on a horizontal axis, represent 3 things: x=-2, x=4, and Δx=4-(-2). c) on a vertical axis, represent 3 things: y=-4, y=14, and Δy=14-(-4). d) draw a sketch of y=f(x) which includes the points (-2,-4) and (4,14). Mark and label Δx and Δy for those two points on this graph. e) calculate that rate, then write the change equation for x and y f) if the change in x is 2, what is the change in y? g) if the change in y is -12, what is the change in x? h) if we swapped x and y (with x on the vertical axis so x=g(y)), what would the rate be?
9. Let y=3x+2
a) typically we write points in this scenario as (x,y), not (y,x), why is that?
b) on a horizontal axis, represent 3 things: x=-2, x=4, and Δx=4-(-2).
c) on a vertical axis, represent 3 things: y=-4, y=14, and Δy=14-(-4).
d) draw a sketch of y=f(x) which includes the points (-2,-4) and (4,14). Mark and label Δx and Δy for those two points on this graph.
e) calculate that rate, then write the change equation for x and y
f) if the change in x is 2, what is the change in y?
g) if the change in y is -12, what is the change in x?
h) if we swapped x and y (with x on the vertical axis so x=g(y)), what would the rate be?
Given :
y=3x+2
a.
here ,
y is dependent on x
x is independent variable , and y is dependable variable
Therefore we write input first (independent variable ) and then its output (dependable variable )
Hence, ( x , y )
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