HW10

f(x) = 3x^2 +10, find f(-7)

• -137

• -32

• 52

• 157

If (x) = 3x² + 10, what is ƒ(−7)?

• -137

• -32

• 52

• 157

Let f(x) be defined by (m² + m) divided by 2, what is f(6)

• 9

• 12

• 21

• 39

What is the domain of the quadratic function graphed below?

• x > -2

• x < 2

• 2 < x < 6

• all real numbers

What is the range of the quadratic function graphed below?

• y ≤ 1

• y ≥ 1

• x ≥ 1

• all real numbers

What is the range of the function y = 2x + 1 for the domain 2 ≤ x ≤ 5? (HINT: Graph the function and look at the table only from the given values)

• ≤ y ≤ 2

• 1 ≤ y ≤ 52

• 4 ≤ y ≤ 10

• 5 ≤ y ≤ 11

What is the domain and range for the function shown on the graph?

• The domain is 4 and the range is 4.

• The domain is 4 and the range is all real numbers.

• The domain is all real numbers and the range is 4.

• The domain is all real numbers and the range is all real numbers.

A school band's budget for next year will be at least $11,340 and at most $12,390. The band will set aside $420 for new music stands and $8,400 for travel and other expenses. They will use the rest to buy 42 new uniforms. Which inequality shows the range of possible values of x, the dollar amount the band can spend per uniform?

• x ≤ 5

• 60 ≤ x ≤ 85

• 70 ≤ x ≤ 95

• 70 ≤ x ≤ 85

The domain and range of part of linear function r are given. x > 5, y < 2. Which graph could represent this part of linear function?

• Graph A

• Graph B

• Graph C

• Graph D

What is the range of the function shown below?

• {–7, −2, 0, 5}

• {–9, −4, −1}

• {-9, -7, -4, −2, −1, 0, 5}

• {-1}