3 years ago

For what values of k will the graph of y=kx+3 be a descending line?

Mathematics

1 answer:

Stells [14]3 years ago

6 0

K is the slope
it is decending when the slope is negative

so for all values of k such that k<0, it will be decending

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Answer:

Step-by-step explanation:

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According to the given conditions:

${x}^{3} - {y}^{3} = 386...(1) \\ y = 7...(2) \\ plug \: y = 7 \: in \: equation \: (1) \\ {x}^{3} - {7}^{3} = 386 \\ {x}^{3} - 343 = 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 343 + 386 \\ {x}^{3} = 729 \\ x = \sqrt[3]{729} \\ x = 9$

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