A quadratic function is defined by f(x)=(x-7)(x+3) Without graphing, identify the x-intercept, starting with one with the larger x value. Write your answer in the following format:(x, y)

 (7, 0), (-3, 0)

Step-by-step explanation:

The x-intercepts are the values of x that make the factors zero. A zero factor makes the value of the function be zero.

  x - 7 = 0   ⇒   x = 7

  x + 3 = 0   ⇒   x = -3

The corresponding (x, y) coordinates are ...

  (7, 0), (-3, 0)

b.an increase in a causes b to decrease

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