Find the equation in slope-intercept form that describes each line through (2, -3)
and (7,9)

Step-by-step explanation:

The slope-intercept from of an equation of a line:

m - slope

b - y-intercept

The formula of a slope:

(x₁, y₁), (x₂, y₂) - ponts on a line

We have two points (7, 9) and (2, -3).

Substitute:

Put the value of the slope and the coordinates of the point (7, 9) to the equation of a line:

            subtract 16.8 from both sides

Finally we have:

it costs $20 to interview each person for a survey. find the cost to obtain a +- 3% margin of error.

step-by-step explanation:

copy and paste, put it in google

good job you smart son of a gun you are smarter that einstein. 7