An electrician charges 110 after 2 hours of work and 190 for 4 hours of work. Write a linear equation in point-slope form that represents the total cost (y) as a function of the number of hours worked (x).

y = 40x + 30

Step-by-step explanation:

The equation for a linear function is given by:

y = mx + b;

where y and x are variables, m is the slope or rate of change of the function and b is the initial value of y at x = 0 (that is y intercept).

Let y represent the total cost and x represent the number of hours worked.

The electrician charges 110 after 2 hours of work and 190 for 4 hours of work.

Representing in coordinate form as (x, y) we get:

(2, 110) and (4, 190)

The equation of the function can be gotten using the formula:

Therefore:

heudhduxhdnshenebdutbbt

step-by-step explanation:

hrhhdhdbbrurb ees

answer: .64

step-by-step explanation

set up the formula for standard deviation for this set of numbers, then simplify