Question 1 - A-Level Maths

Exam Board	Edexcel
Module	Paper 2 (Paper 2)
Year	2019
Session	June
Topic	Exponential Equations & Modelling

$$2 ^ { x } \times 4 ^ { y } = \frac { 1 } { 2 \sqrt { 2 } }$$ express $y$ as a function of $x$.