Question 1: the function h is defined by h(y)=2y-7. what is the value of h(8)? a) 23 b) 21 c) 9 d) 2 question 2: what is the solution to the equation? (7/8) = (m/32) a) 14 b) 24 c) 28 d) 30 question 3: which statement is true? e a) the letter has rotation symmetry only b) the letter has reflection symmetry only c) the letter has neither reflection nor rotation symmetry d) the letter has both reflection and rotation symmetry question 4: which statement is true? z a) the letter has reflection symmetry only b) the letter has rotation symmetry only c) the letter has neither reflection nor rotation symmetry d) the letter has both reflection and rotation symmetry question 5: which statement is true? x a) the letter has both reflection and rotation symmetry b) the letter has reflection symmetry only c) the letter has neither reflection nor rotation symmetry d) the letter has rotation symmetry only

Answer and Explanation:

1) Given : The function h is defined by .

To find : The value of h(8)?

Solution :

Put y=8,

So, Option C is correct.

2) Given : Equation

To find : What is the solution to the equation?

Solution :

Cross multiply,

So, Option C is correct.

3) Given : Letter 'E'

To find : Which statement is true?

Solution :

Letter 'E' has a horizontal symmetry i.e. the bottom of the letters is a reflection of the top.

i.e. the 'E' has reflection symmetry but no rotational symmetry.

So, Option B is correct.

The letter 'E' has reflection symmetry only.

4) Given : Letter 'Z'

To find : Which statement is true?

Solution :

Letter 'Z' rotated by 180° about particular axis, they remain same.

i.e. the 'Z' has rotational symmetry but not reflection symmetry.

So, Option B is correct.

The letter 'Z' has rotational symmetry only.

5) Given : Letter 'X'

To find : Which statement is true?

Solution :

Letter 'X' has a horizontal symmetry i.e. the bottom of the letters is a reflection of the top.

Letter 'X' has a vertical symmetry i.e. the right side is a reflection of the left.

Letter 'X' rotated by 180° about particular axis, they remain same.

i.e. the 'X' has reflection symmetry and rotational symmetry both.

So, Option A is correct.

The letter 'X' has both reflection and rotation symmetry

i believe the correct answer is b.