Pure Year 1 C3

Question 1

To solve quadratic inequality..

Answer 1

• Rearrange so that the right-hand side of the inequality is 0
• Solve the corresponding quadratic equation to find the critical values
• Sketch the graph of the quadratic function
• Use your sketch to find the required set of values.

Question 2

When y=f(x) is below the curve…

Answer 2

y=g(x) satisfies f(x) < g(x)

Question 3

when y=f(x) is above curve

Answer 3

y=g(x) satisfies f(x) > g(x)

Question 4

Dotted Line represents

Answer 4

If y>f(x) or y < f(x) then the curve y = f(x) is not included in the region

Question 5

Solid line represents

Answer 5

9 If y>or =f(x) or y < or = f(x) then the curve y = f(x) is in the region