Question

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

Answer 1

Answer:

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

(d) 30 represents the y intercept

Step-by-step 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