Use the image to answer the question.
Two parabolas with a common vertex are drawn on a coordinate plane. The x-axis ranges from negative 3 to 3 in one-unit increments and the y-axis ranges from negative 4 to 2 in one-unit increments.
Which of the following best describes the transformation from the solid-line graph to the dotted-line graph and correctly states the factor k?
(1 point)
Responses
horizontal stretch with a factor k = 0.5
horizontal stretch with a factor k = 0.5
horizontal compression with a factor k = 0.5
horizontal compression with a factor k = 0.5
horizontal stretch with a factor k = 2
horizontal stretch with a factor k = 2
horizontal compression with a factor k = 2