F(x) = - x - 5
f(4) = -4 - 5 = -9
Answer: f(4) = -9
        
             
        
        
        
At first, she had  +2y  in the upper and  -5y  in the lower.
She multiplied the upper by  5 .  Then she had  +10y in the upper.
She should multiply the lower by  2 .  Then she'll have  -10y 
there.  She'll be able to add the two equations, and the 'y's will 
go away.  She'll be left with a single equation with only 'x' in it, 
and she can solve that one for the value of 'x'.
        
             
        
        
        
Answer:
D) -3
Step-by-step explanation:
Slope of a linear function:
The slope of a linear function is the amount by which y changes when x increases by 1.
In this question:
When x = 1, y = 12
When x = 2, y = 9
When x = 3, y = 6
When x = 4, y = 3
So each time x increases by 1, y decreases by 3, which means that the slope is -3, and the answer is given by option D.
 
        
             
        
        
        
 good luck in first grade kid
        
             
        
        
        
It's a kite or a rhombus.