Unit 2 Practice: Level Change Indicators

Question 1 (10 points)

A grade 1 indicator is needed before a braille grouping symbol unless the expression is already in uncontracted mode.

True

False

Question 2 (10 points)

Choose the best braille transcription for:

x^{a + 2}

⠭⠰⠔⠰⠣⠁⠐⠖⠼⠃⠜

⠭⠔⠣⠁⠐⠖⠼⠃⠜

⠰⠭⠰⠔⠰⠣⠰⠁⠐⠖⠼⠃⠰⠜

Question 3 (10 points)

Where does the grade 1 indicator go in the following math expression?

⠭⠔⠃

before the x

before the level change indicator

before the b

Question 4 (10 points)

Which transcription uses braille grouping symbols?

x^{y^{z}}

⠰⠰⠭⠔⠣⠽⠔⠵⠜

⠰⠰⠭⠔⠽⠔⠵

⠰⠰⠭⠔⠽⠔⠣⠵⠜

Question 5 (10 points)

Choose the best braille transcription for:

x_{y^{z}}

⠰⠰⠭⠢⠣⠽⠔⠼⠃⠜

⠰⠭⠰⠢⠰⠣⠰⠽⠰⠔⠼⠃⠜

⠭⠰⠢⠣⠽⠰⠔⠼⠃⠜

Question 6 (10 points)

Match the print definition to the braille symbol.

1. grade 1 indicator	a. ⠣
2. opening braille grouping symbol	b. ⠰
3. closinging braille grouping symbol	c. ⠢
4. level up	d. ⠔
5. Level down	e. ⠜