Grade 11 Mental Math

Calculate 6x(4x² + 8x)

• 24x⁴ - 48x

• 72x⁴

• 72x³ + 48x²

• 24x³ + 48x²

multiply 9 x 4 x 12 x 3 x 0

• 1296

• 0

• 72

• 0.72

What is 1/2 of 123

• 62.5

• 63.5

• 61.5

• 60,5

In the exponential function a∗b^x the value of "a" gives you the _________ of the graph.

• Shape

• Vertical Translation

• Horizontal translation

• Growth or decay

In f(x) = 5x - 8, calculate f(200)

• 892

• 982

• 882

• 992

What is x in 2^x = 16?

• 8

• 4

• 3

• 2

What is x in 1/16 = 2^x

• -4

• -3

• -2

• -5

What is the value of f(x) = 6x² - 3x + 65, if x = -2?

• 95

• 83

• 35-

• 47

Which value of below will satisfy x³ = 27

• 9

• 6

• 4

• 3

Which value of x will satisfy 8x + 2 < 6

• x > 2

• x < 1/2

• x > 1/2

• x = 2