Search

1 of 8 0-day streak

Determine a power-family rule from features and points

Question 1 of 8

No calculator

The following exact data describe one power-family rule. Determine its normal form

The full relation is a sideways parabola with a vertex and two branches

The vertex is \((3,-2)\)

\[P_1=(2,-3),\qquad P_2=(-1,-4)\]

The first point determines the scale. The second point is supplied for verification

(a)3 marks

Record the exact parameter values in the normal form

(b)1 mark

Use the exact data to determine the parameterised rule

(c)1 mark

Verify the rule at the unused exact point condition