MAT104

Given function f(x) = x³ + 3x² + x + 7, evaluate f(-1)

• 8

• 4

• -4

• -8

Suppose that the supply function for a good is given by S = {(q, p)|q - 3p = -1}, where q is the quantity and p is the price. Determine the supply function q^s

• q^s = 3p - 1

• q^s = 3p - q - 1

• q^s = q - 3p + 1

• q^s = 1/3p - 1

• The demand is perfectly elastic.
• The demand is unit elastic.
• The demand is perfectly inelastic.
• The demand is relatively elastic.

The following are the relationship between total revenue R(x), total cost C(x) and profit P(x) except;

• P(x) = R(x) + C(x)
• R(x) = P(x) + C(x)

• P(x) = R(x) * C(x)
• P(x) = R(x) - C(x)

• -x² + 1

• 6x - 2

• 3x²

• 3x² - 2x

• 180x³ - 48x

• 60x³ - 24x² + 6

• 360x - 48

• 15x⁴ - 8x³ + 6X

Suppose that the two functions f and g given by f(x) = x³ and g(x) = 2x + 3, Find the formula for the composite function of fg

• (2x + 3)³

• 2x³ + 3

• (2x + 3)²

• 2x³ + 9