The y-intercept of the quadratic equation is -47.
<h3>What is Quadratic Equation?</h3>
A quadratic equation is an algebraic equation of the second degree in x. The quadratic equation in its standard form is ax² + bx + c = 0, where a and b are the coefficients, x is the variable, and c is the constant term.
Here, given quadratic equation;
     f(i) = i² + 10i - 22
or,  y = i² + 10i - 22
      y = i² + 2.5x - (47-25)    
     y = i² + 2.5x + 25 - 47
     y = (i+5)² - 47
Thus, the y-intercept of the quadratic equation is -47.
Learn more about Quadratic Equations from:
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Answer:
45° 
Step-by-step explanation:
Angle CDE is half of a right angle
1. 90°/2 = 45°
 
        
             
        
        
        
N^2.....because this is the product of n and itself, not the sum
        
                    
             
        
        
        
Slope: 3/2  (the coefficient of x)
Y-Intercept: (0,3)  (substituting x = 0 into the equation)
Ans: Yellow