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I NEED HELP PLEASE, THANKS! :)

I NEED HELP PLEASE, THANKS! :)-example-1
User Lee Smith
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1 Answer

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Answer: D) reflection over the x-axis, vertical shrink by a factor of 7/8, horizontal shift 3 units to the left, and vertical shift 3 units up.

Explanation:


Consider\ f(x)=Ae^(Bx-C)+D\qquad where

  • A = vertical stretch by a factor of A (|A| < 1 is a vertical shrink)
  • -A = reflection across the x-axis
  • B = horizontal shrink by a factor of 1/B
  • C = horizontal shift C units (positive = right, negative = left)
  • D = vertical shift D units (positive = up,, negative = down)


f(x)=e^x\\\\g(x)=-(7)/(8)e^(x+3)+3

→ A = -(7/8)

The negative sign represents a reflection across the x-axis.

(7/8) < 1 so it is a vertical shrink by a factor of (7/8)

→ C = -3 x +3 = x - (-3)

This is a horizontal shift 3 units to the left.

→ D = +3

This is a vertical shift 3 units up.

User AMember
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