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3 years ago

In the piece-wise function graphed below, which is the correct equation for when -2 ≤ x ≤ 0

Mathematics

1 answer:

Finger [1]3 years ago

3 0

Answer:

y = 3x + 5

Step-by-step explanation:

In the interval - 2 ≤ x ≤ 0 the graph is a straight line.

The equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y- intercept )

Calculate m using the slope formula

m = (y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (- 2, - 1) and (x₂, y₂ ) = (0, 5) ← 2 points on the line

m = $\frac{5+1}{0+2}$ = $\frac{6}{2}$ = 3

The line intercepts the y- axis at (0, 5) ⇒ c = 5

y = 3x + 5 ← equation for - 2 ≤ x ≤ 0

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3 years ago

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White raven [17]

Answer:

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3 years ago

Read 2 more answers

-8x-11x what is the answer

gregori [183]

Answer:

-19x

Step-by-step explanation:

so you start with -8 and when you subtract 11 from -8 its the same as adding them but because your subtracting you'll decrease which make the answer -19x. (hopefully this made sense)

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