Grade 12 Mathematics Unit 1

Solve the equation: 2x + 5 = 17

• x = 10

• x = 15

• x = 6

• x = 8

Find the value of y if 3y - 8 = 13

• 15

• 7

• 10

• 5

Calculate the area of a triangle with base 6 cm and height 8 cm

• 24 square cm

• 30 square cm

• 14 square cm

• 48 square cm

Simplify the expression: 4x^2 + 7x - 5

• 4x^2 + 7x - 5

• 4x^2 + 7x + 5

• 4x^2 - 7x - 5

• 4x^2 + 7x + 5

If f(x) = 3x - 2, find f(4)

• -1

• 12

• 5

• 10

Determine the domain of the function g(x) = √(x+5)

• x = -5

• x ≤ -5

• x > -5

• x ≥ -5

Solve the inequality: 2x + 3 < 11

• x > 4

• x < 4

• x = 4

• x ≤ 4

Find the x-intercept of the line with equation 2x - 3y = 6

• (4, 0)

• (0, 3)

• (2, 0)

• (3, 0)

If log₃(9) = x, what is the value of x?

• 4

• 5

• 2

• 3

Calculate the value of sin(60°)

• √3 / 2

• 0.5

• 1/2

• 1