Question

Use the image to answer the question.

A coordinate plane's axes range from negative 5 to 5, both by 1-unit increments. 2 functions are plotted, 1 solid and 1 dotted. The solid function is labeled 'Function upper A' and the dotted function is labeled 'Function upper B.'
▶Click for Long Desc

Describe the transformations from Function A
to Function B
.

(1 point)

wider and shifted left 2 units

narrower and shifted right 2 units

narrower and shifted left 2 units

wider and shifted right 2 units

Answer 1

I can't see the image you referenced. Please either upload the image or tell me coordinates of a few key points (especially the vertex of each graph and one other point on each curve).

If you want to check it yourself, here’s how to decide:

- Determine the horizontal shift: compare the x-coordinate of Function A’s vertex to Function B’s vertex. If B’s vertex x = A’s vertex x + 2, B is shifted right 2; if x = A’s x − 2, B is shifted left 2.
- Determine wider vs. narrower: pick a horizontal line y = k (not the vertex), find the x-intercepts (or the two x-values) where each function crosses that line. If the distance between those x-values for B is larger than for A, B is wider; if smaller, B is narrower.

Give me the image or the vertex and one other point for each function and I’ll pick the correct choice.