Find the equation of the line passing through the points (-1,-2) (-2,7)

The slope-intercept form of a line:

m - slope

b - y-intercept.

The formula of a slope:

We have the points (-1, -2) and (-2, 7). Substitute:

Therefore we have .

Put the coordinates of the point (-1, -2) to the equation of a line:

    subtract 9 from both sides

$53.50

step-by-step explanation:

you have to subtract the amount of money chuck earned ($72.50) by the cost of the gas for the mower ($11.25) and the new string for the trimmer he bought ($7.75).

72.50-11.25=61.25

and then subtract $61.25 by the second thing he bought (the new string for the trimmer)

61.25-7.75=53.5

so in total it's $53.50 (53 dollars and 50 cents)

x equals 1

step-by-step explanation:

f(4)=f(×)

x=1