Four of the 16 students in Ms. Salas’s class after school are serving detention. The rest of the students are there for tutoring. Using the diagram below, determine the percent of the students in Ms. Salas’s classroom after school who were there for detention. Choices:

A: 16%
B: 25%
C: 40%
D: 60%

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step-by-step explanation:

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