joellecarmel joellecarmel

02-04-2020
Mathematics

contestada

The function y = -x - 1 and y = ½x + k intersect at the point (-2,1). Find the value of k.

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sqdancefan sqdancefan

02-04-2020

Answer:

k = 2

Step-by-step explanation:

Fill in the given point values and solve for k.

y = (1/2)x + k

1 = (1/2)(-2) +k . . . . . . for x = -2, y = 1

1 = -1 +k . . . . simplify; next, add 1

2 = k

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