Question

6. What impact does the 5 have in the following equation. y = 5(x+2)^2 +

7? *
A. It makes the graph really wide.
B. It makes the graph really narrow.
C. It makes the graph shift up 5 above the origin.
D. It makes the graph shift down 5 below the origin.

Answer 1

B. It makes the graph really narrow.

Explanation:

`\displaystyle Y = A[X - H]^2 + K`

In the Vertex Formula, any fraction you store in for A will result in a vertical shrink, widening the graph, whereas any whole number you store in for A will result in a vertical stretch, narrowing the graph.

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