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(c) Paul uses the function y = 7x + 30 to model the situation. What score does Paul’s model predict for 3 hours of homework?

(d) Describe what the number 30 in Part (c) mean in the context of the situation?

User Bendr
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1 Answer

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Answer:

(c) Paul's model predicts a score of 51 for 3 hours

(d) 30 represents the y intercept

Explanation:

Given


y = 7x + 30

Solving (c): What is y when x is 3

Substitute 3 for x in
y = 7x + 30


y = 7*3 + 30


y = 21 + 30


y = 51

Solving (d): What does 30 represent

An equation is represented as:


y = mx + b

Where


b = y\ intercept

Compare:
y = mx + b to
y = 7x + 30


b = 30

This implies that 30 represents the y intercept

User Jason Gray
by
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