The amount lin's sister earns at her part-time job is proportional to the number of hours she works. she earns $9.60 per hour. write an equation in the form of y=kx to describe this situation, where x represents the hours she works and y represents the dollars she earns

Step-by-step explanation:

If represents the hours she works and represents the dollars she earns, and she earns at a ratio of $9.60 per hour, then the expression would be

Because, the ratio must multiply hours to give the total amount of money she earns.

For example, if Lin's sister works 10 hours, then she earns

Basically, each hour is gonna be multiplied by the ratio of change, which is $9.60.

Therefore, the answer is

answer: finding the extract measurements and knowing the points

step-by-step explanation:

5x + 3y = - 4

step-by-step explanation:

the equation of a line in standard form is

ax + by = c ( a is a positive integer and b, c are integers )

express the line first of all in slope- intercept form

y = mx + c ( m is the slope and c the y-intercept )

to calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (7, - 3) and (x₂, y₂ ) = (4, - 8)

m = = -

y = - x + c ← is the partial equation

to find c substitute either of the 2 points into the partial equation

using (4, - 8 ), then

- 8 = - + c ⇒ c = -

y = - x - ← in slope-intercept form

multiply all terms by 3 to eliminate the fractions

3y = - 5x - 4 ( add 5x to both sides )

5x + 3y = - 4 ← in standard form