Hi we were assigned two questions to write a response to but I'm not sure how to start Q1 and Q2.
I tried to answer Q2 but I don't really understanding how to use intertextuality in my response? 
2. How can responses to a text change over time and in different historical, social and cultural contexts? Briefly explain in relation to one text you have studied. (15 marks)
1. How has one text you have studied used intertextuality to shape audience response? (15 marks)
Hey hey! Is your response (in the spoiler below) for Question 1 or Question 2? Let me help you understand the idea of "intertextuality" and we can go from there

So
intertextuality is the literary technique of developing a relationship between texts to develop the meaning of one text, with another. It is, basically, using reader/audience knowledge of one text to shape how they view another text. For example, the Bible is often used in intertextual references, because references to the Bible can quickly establish themes of morality, virtue and wisdom, for a broad audience, without too much work. Simply by using intertextual allusion (referencing aspects/stories of the Bible), the reader associates the text with those themes.
Similarly, any text that a composer references or alludes to, will shape how you view that composer and their text. Think about the texts that your composer is drawing reference to, and think, "What are my opinions of that other text? How do those opinions relate to my study of the text in front of me?"
Spoiler
Fairytales are credited with teaching good morals and messages in a fantastical memorable way to children. Throughout the gothic short story, ‘The Werewolf’, Angela Carter uses intertextuality to challenge the reader’s understanding and interpretation of the modern fairy tale ‘Little Red Riding Hood’. Carter crafts the audience’s response of awareness towards the difference of the setting and characters in each respective text through the meticulous use of descriptive language and imagery and characterisation.
‘The Werewolf’ by Angela Carter utilises a range of descriptive language and imagery to uncapsulate the setting of the woods and the dangers within it. Her use of repetition of the word cold in ‘they have cold weather, they have cold hearts.Cold; tempest; wild beasts in the forest.’ emphasises the harsh setting of a northern country. Intertextuality influences the reader to contrast by illustrating ‘It is a hard life’.