NARROW STRETCH y = 5x²
WIDE STRETCH y = ½x²
NO STRETCH, BUT SYMMETRIC HYPERBOLAS y = 1/x²
NO STRETCH, BUT TRANSLATED DOWNWARD BY -7 UNITS y = x²-7
See graphs below
2nd...when x = 2 we have y = 20...but 1/x² is better...when x = ±1 / 10 , y = 100
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NARROW STRETCH y = 5x²
WIDE STRETCH y = ½x²
NO STRETCH, BUT SYMMETRIC HYPERBOLAS y = 1/x²
NO STRETCH, BUT TRANSLATED DOWNWARD BY -7 UNITS y = x²-7
See graphs below
2nd...when x = 2 we have y = 20...but 1/x² is better...when x = ±1 / 10 , y = 100