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ciel8809
14.06.2020 •
Mathematics
The graph of a sinusoidal function has a minimum point at (0, - 10) and then has a maximum point at (2, - 4) Write the formula of the function , where x is entered in radians .
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Ответ:
Step-by-step explanation:
Minimum: (0, -10)
Maximum: (2, -4)
y = A sin (Bx - C) + D
Amplitude (A) = (Max - Min)/2Period = 2π/B → B = 2π/PeriodPhase Shift = C/B → C = B × Phase ShiftMidline (D) = (Max + Min)/2Sin usually starts at (0, 0). For this graph, the midline touches 0 when x = 1 so the Phase Shift = 1.
Ответ:
45° for both
Step-by-step explanation:
Angles in a triangle add to 180° and there is two angles labelled x and one right angle so
2x + 90° = 180°
( Minus 90 from both sides to isolate 2x )
2x = 90°
( Divide both sides by 2 to isolate x )
x = 45°