Answer:
C
Step-by-step explanation:
When you're writing a function from a table use the equation:
y = mx +b
We look at our the difference in each in the table.
x goes up by 1 each time, and the combines change of y is $1.50+$2 each time for $3.50 total. That's a ration of 3.50/1 or just $3.50. This is our m value.
Now we have:
y = $3.50x +b
Now we find our b value by plugging in our values from the table.
x = 1 and y = $6
$6 = $3.50(1) + b
$6 = $3.50 + b subtract $3.50 from each side
$6 - $3.50 = $3.50 - $3.50 + b
$6 - $3.50 = b
$2.50 = b
So m = $3.50 and b = $2.50 so our equation is
y = $3.50x + $2.50
The answer is C
