Is it continuous? Reading graphs
Grade 12 Math Worksheet - Building Confidence

Circle the best answer.
Ari looks at the graph shown near x = 2, where the pen has to lift. What kind of break is it?
- a hole at x = 2
- a jump at x = 2
- an asymptote at x = 2
Graph near x = -1: the left piece ends at one height and the right piece starts at another. Bo looks at the graph shown near x = -1, where the pen has to lift. What kind of break is it?
Graph near x = -1: the left piece ends at one height and the right piece starts at another. Graph near x = -1: the left piece ends at one height and the right piece starts at another. x y -1 - a hole at x = -1
- an asymptote at x = -1
- a jump at x = -1
Esme looks at the graph shown near x = 3, where the pen has to lift. What kind of break is it?
Graph near x = 3: the curve runs up or down without bound beside a dashed line. Graph near x = 3: the curve runs up or down without bound beside a dashed line. x x = 3 - a jump at x = 3
- a hole at x = 3
- an asymptote at x = 3
Jun looks at the graph shown near x = 4, where the pen has to lift. What kind of break is it?
Graph near x = 4: the left piece ends at one height and the right piece starts at another. Graph near x = 4: the left piece ends at one height and the right piece starts at another. 4 x - a hole at x = 4
- an asymptote at x = 4
- a jump at x = 4
Kira checks the graph shown at x = 2 with the three-part test. Which is true?
Graph near x = 2: both sides head to height 5, and a filled dot sits at (2, 5). Graph near x = 2: both sides head to height 5, and a filled dot sits at (2, 5). x y 2 5 - no limit at x = 2
- not continuous at x = 2
- continuous at x = 2
Luz checks the graph shown at x = 1 with the three-part test. Which is true?
Graph near x = 1: both sides head to height 3, and a filled dot sits at (1, 6). Graph near x = 1: both sides head to height 3, and a filled dot sits at (1, 6). −2 −1 1 2 3 4 0 1 2 3 4 5 6 7 - no limit at x = 1
- continuous at x = 1
- not continuous at x = 1
Milo checks the graph shown at x = -2 with the three-part test. Which is true?
Graph near x = -2: both sides head to height 4, and a filled dot sits at (-2, 4). Graph near x = -2: both sides head to height 4, and a filled dot sits at (-2, 4). −5 −4 −3 −2 −1 1 0 1 2 3 4 5 - no limit at x = -2
- not continuous at x = -2
- continuous at x = -2
Noah checks the graph shown at x = 3 with the three-part test. Which is true?
Graph near x = 3: both sides head to height -1, and a filled dot sits at (3, 2). Graph near x = 3: both sides head to height -1, and a filled dot sits at (3, 2). 3 -1 (3, 2) - continuous at x = 3
- not continuous at x = 3
- no limit at x = 3
Pia checks the graph shown on the interval from x = 0 to x = 3. Is f continuous on [0, 3]?
Graph of f with breaks only at x = 2 and x = 5; everywhere else the pen never lifts. Graph of f with breaks only at x = 2 and x = 5; everywhere else the pen never lifts. x f 2 5 - no, it breaks at x = 2
- no, it breaks at x = 5
- yes, continuous on [0, 3]
Zee checks the graph shown on the interval from x = -4 to x = 0. Is f continuous on [-4, 0]?
Graph of f with breaks only at x = 2 and x = 3; everywhere else the pen never lifts. Graph of f with breaks only at x = 2 and x = 3; everywhere else the pen never lifts. x f -4 0 2 3 x = 2 x = 3 - yes, continuous on [-4, 0]
- no, because the graph has breaks
- no, it breaks at x = 2

