Let f be a function such that f(x) = 3x - 2 is defined on the domain 1 is less than or equal to x is less than or equal to 9. the range of this function is?

Range:  [1,25]

Step-by-step explanation:

You may find it easier to express the domain in set notation rather than in words:  [1,9], or 1 ≤ x ≤ 9.  The smallest value of f(x) = 3x - 2 is at x = 1 and is 3(1) - 2, or 1.  The lasrgest value of f(x) is at x = 9 and is 3(9) - 2, or 25.

Thus, the range of this function is [1,25] or 1 ≤ y ≤ 25.

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: