Answer:
slope is 2 or 2/1 and y intercept is -7
Step-by-step explanation:
y=mx+b
mx= slope
b= y intercept
How to get answer by Mimiwhatsup (In Decimal Form):
Answer in Fraction Form: 
Linear regression line y=2.1x+130 predicts sales based on the money spent on advertising.
Linear regression represents the relationship between two variables. the value of y depends on the value of x.
x represents the dollars spent in advertising and y represents the company sales in dollars.
We need to find out sales y when $150 spends on advertising.
Plug in 150 for x and find out y
y = 2.1 x + 130
y = 2.1 (150) + 130
y= 445
The company expects $445 in sales
