Suppose that y varies directly with x and y=5 when x=6. What is y when x=5? Be sure to simplify your answer.

Mathematics

1 answer:

Charra [1.4K]3 years ago

8 0

Answer:

y = $\frac{25}{6}$

Step-by-step explanation:

Given y varies directly with x then the equation relating them is

y = kx ← k is the constant of variation

To find k use the condition y = 5 when x = 6

k = $\frac{y}{x}$ = $\frac{5}{6}$

y = $\frac{5}{6}$ x ← equation of variation

When x = 5, then

y = $\frac{5}{6}$ × 5 = $\frac{25}{6}$

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3 years ago

2. If f(x) = 2X^2 + 3X Find f(-5)

IgorLugansk [536]

Answer:

Step-by-step explanation:

2(-5)^2+3(-5)

=2(25)+(-15)

=50-15

=35

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