3 years ago

Y = x + 2 y = -1/5x - 4

Mathematics

2 answers:

Archy [21]3 years ago

8 0

Answer:

x = -5 y = -3 or (-5, -3)

Step-by-step explanation:

Lorico [155]3 years ago

3 0

Y = x + 2
Substitute y to 0

0=x + 2
Move the variable to the left

-x=2
Change the sign

y = -1/5x - 4
Substitute y to 0

0= -1/5x - 4
Multiply both sides

0= -x -20
Move the variable to the left

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andreev551 [17]

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3 years ago

If a varies directly with b and a = -2 when b =3 what is the constant of variation

lina2011 [118]

A varies directly with b → a = kb where k is the constant of variation (i.e. slope)

-2 = k × 3 ← substitute values into the formula above

-2/3 = k ← result of dividing both sides by 3

Answer: k = $-\frac{2}{3}$