What are the important points to graph $y=sin(x+90)$ ?

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Answer 1 · 2018-06-07T06:51:58

As below.

Standard form of sinusoidal function is $y = A sin (Bx - C) + D$

Given $y = sin (x + 90) = sin (x + pi/2)$

$A = 1, B = 1, C = -pi/2, D = 0$

$Amplitude = |A| = 1$

$"Period " = (2pi) / |B| = 2pi$

$Phase Shift " = -C / B = -pi/2$ , $color(red)(pi/2 " to the Left"$

$"Vertical Shift " = D = 0$

graph{sin (x + pi/2) [-10, 10, -5, 5]}

What are the important points to graph y=sin(x+90)y=sin(x+90)?