When choosing a four-number PIN. (personal identification number)
how many different PINS are possible?

(The choice of digits 0-9 are available for each number.)

Theoretically, there are 10,000 possible four-digit combinations the numbers 0 to 9 can be arranged into, and if everyone selected a number entirely at random that would offer a reasonable level of protection.Step-by-step explanation:

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step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is