Answer:
C
Step-by-step explanation:
y(x) = x^(1/3)+7
y(-8)=(-8)^(1/3)+7=5
y(-1)=(-1)^(1/3)+7=6
y(1)=(1)^(1/3)+7=8
y(8)=(8)^(1/3)+7=9
 
        
             
        
        
        
Answer:
m=2/3, b=12
Step-by-step explanation:
When you see an equation in this format, it's called slope-intercept form (y=mx+b, with m being slope and b being y-intercept). So in this case, by looking at our formula, we can tell right away that our slope, or m, is 2/3 and our y-intercept, or b, is 12. HTH :)
 
        
             
        
        
        
Answer:
D. 3x² + 19x - 14
Step-by-step explanation:
Use FOIL to find the answer.
First: x * 3x = 3x²
Outer: -2 * x = -2x
Inner: 3x * 7 = 21x
Last: 7 * -2 = -14
Form the equation:
3x² - 2x + 21x - 14
Combine like terms.
3x² + 19x - 14
 
        
             
        
        
        
Answer:
2.58333333333
Step-by-step explanation:
 
        
                    
             
        
        
        
Answer:
Step-by-step explanation:
(a + b)² =a² + 2ab + b²
(a -b)² = a² - 2ab + b²
1) y = (x -1)²
  y= x² -  2*x*1 + 1 
y = x² - 2x + 1    
Ans: C
 2)y = (x +4)² + 5 
y = x² +2*x*4 + 4² + 5
   = x² + 8x + 16 + 5
y = x² + 8x + 21
C
3) y = -(x + 9)²- 10
y = - [x² + 18x + 81] - 10
 = -x² - 18x - 81 - 10
y =-x² - 18x - 91
B
4) y = 3(x + 2)² - 18
y =3 [x² + 4x + 4] - 18
y =  3x² + 12x  + 12 - 18
y =3x²  + 12x - 6
A
5) y = -2(x + 1)² - 16
        = -2[x² + 2x + 1] -16
        = -2x² - 4x - 2 - 16
      y = -2x² - 4x -  18
A
6) y = 5(x + 5)²
         =5[x²+ 10x + 25]
y = 5x² +50x + 125
A
7)y = (1/2)(x + 8)² - 8
   y = (1/2) (x² + 16x + 64) - 8
 
A
8) y = (x + 3/2)² + 3/4

C
9) y = 2[x² + 16x + 64] - 5x
y = 2x² + 32x + 64 - 5x
y =2x² + 27x + 6