Write the equation of a line that goes through the points (1,-1) and (3,2).

y=3/2x-5/2

Step-by-step explanation:

1.find the slope

y2-y2/x2-x1

2-(-1)/3-1

2+1/3-1

3/2 slope (m)

2.y-y1=m(x-x1)

y-(-1)=3/2(x-1)

y+1=3/2x-3/2

y=3/2x-3/2-1

y=3/2x-5/2

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step-by-step explanation:

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a_n = a_1 + (n - 1)d

the first term is 6.

the common difference d = ?

when you find d, replace n with 7 and d with the common difference to find your answer.