To support a shelf, the diameter of a bolt can measure anywhere from 0 point 2 cm less than 1 point 5 cm to 0 point 2 cm greater than 1 point 5 cm. Which graph represents the possible measures of the diameter of the bolt?
Answer
A
Image with description A number line labeled from 1 to 2 in increments of 0 point 2. There is an open dot at 1 point 3 and another open dot at 1 point 7. Both the dots are connected.
B
Image with description A number line is labeled from 1 to 2 in increments of 0.1. The line is shaded from 1.3 to 1.7 with filled circles at 1.3 and 1.7.
C
Image with description A number line labeled from 1 to 2 in increments of 0 point 2. An open dot at 1 point 3 from which a ray extends to the left, and another open dot at 1 point 7 from which a ray extends to the right.
D
Image with description A number line labeled from 1 to 2 in increments of 0 point 2. A closed dot at 1 point 3 from which a ray extends to the left, and a closed dot at 1 point 7 from which a ray extends to the right.
Explanation
Subtract 0.2 cm from 1.5 cm to get 1.3 cm, and add 0.2 cm to get 1.7 cm. “Anywhere from” these measures includes both endpoints, so the graph should shade between 1.3 and 1.7 with filled circles at both ends. That is choice B.
AI-written and checked against the verified answer.