The function r(x) represents the radius of a circle for a given area . A graph of the function is shown in the figure. According to the graph what is the approximate average rate of change in the radius of the circle as the area increases from 3 square feet to 7 square feet?

• 0.125 foot per square foot
• 0.25 foot per square foot
• 0.5 foot per square foot
• 8 feet per square foot 

Graph the function f(x) = x²-4x
What are the correct intervals of increase and decrease?

• Increases (-∞, 2) Decreases (2, ∞)
• Decreases (-∞, 2) Increases (2, ∞)
• Increases (-∞, 4) Decreases (4, ∞)
• Decreases (-∞, 4) Increases (4, ∞)

What function is represent by the following equation f(x)= (x - 2)² .

• Linear
• Exponential
• Logarithmic
• Quadratic

Factor
10x² + 15x-5

• 25(10x³+45x-15)
• 5(2x³ + 3x²-x)
• x(10x³+15x-5)
• 5(2x²+3x-1)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Which graph passes the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Tags

CCSS.HSF.IF.A.1

Which graph does NOT pass the vertical line test?

• Graph 1
• Graph 2
• Graph 3
• Graph 4

Tags

CCSS.HSA.REI.D.10

Use the graph to determine the solutions.

• -1 and -3
• 1 and -3
• 1 and 3
• -1 and 3

Does this graph have maximum or minimum value?

• maximum
• minimum
• neither
• both

f(n)=x²+1
g(n)=2x-5
Find f(n)-g(n)

• x²-2x+6
• -x²+2x+4
• -x²-2x-6
• x²-2x-4

Tags

CCSS.HSF-BF.A.1B

Name the type and number of solutions when the discriminant < 0

• 1 real solution
• 1 imaginary solution
• 2 imaginary solutions
• 2 real solutions

Tags

CCSS.HSA-REI.B.4B