Answer:
a. at zero years of education, income equals $1500
Step-by-step explanation:
The equation for income 'I', as a function of years of education 't' is given by:

Where b is the regression coefficient and a is the intercept.
The intercept is the value assumed by the function for t = 0 years of education:

Since the income function measures income in $1,000s, at zero years of education, income equals $1500
 
        
             
        
        
        
Answer:
Step-by-step explanation:
2x⁴ + 4x³ - 30x² = 2x²*(x² + 2x - 15)
x² + 2x - 15
Sum = 2 
Product = -15
Factors = 5 ; (-3)
x² + 2x - 15 = x² + 5x - 3x - 3 *5 
                   = x(x + 5) - 3(x + 5)
                   = (x + 5)(x - 3) 
2x⁴ + 4x³ - 30x² = (2x²) (x + 5)(x - 3)
 
        
             
        
        
        
Answer:
k12
Step-by-step explanation:
 
        
             
        
        
        
Answer:
super easy i can help you whenever
Step-by-step explanation:
im in high and i had As in 6th
 
        
             
        
        
        
Answer:
-3 
the blue dot on the no line represent -3