52.20÷3= 17.40×5=87. The meal cost £87
Answer:

Step-by-step explanation:
we know that
The equation of a line in point slope form is equal to

step 1
Find the slope m
we have the points
A(-2,-1),B(6,5)
The formula to calculate the slope between two points is equal to
substitute the values
simplify
step 2
Find the equation of the line
we have

substitute


The answer is -4. The range is the y-value and when you say f(x) that is the same thing as y, so if f(x) = -4 that means y = -4 which means the range is -4.