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At 2 hours before sunset, the temperature is 0°F. At 2 hours after sunset, the temperature is −4°F. Identify the slope, y-intercept, x-intercept, and equation that represents the temperature, y, as it changes over time, x.

Respuesta :

Answer:

[tex]Slope = -1[/tex]

[tex]y = -2[/tex] --- y intercept

[tex]x = -2[/tex] ---- x intercept

[tex]y = -x - 2[/tex] --- equation

Step-by-step explanation:

Given

Represent temperature with y and time with x

When

[tex]y = 0F; x = 2hrs\ before\ sunsets[/tex]

[tex]y = -4F; x = 2hrs\ after\ sunset[/tex]

Solving Slope;

[tex]Slope = \frac{y_2 - y_1}{x_2 - x_1}[/tex]

[tex]Slope = \frac{-4 - 0}{2 - (-2)}[/tex]

[tex]Slope = \frac{-4 - 0}{2 +2}[/tex]

[tex]Slope = \frac{-4}{4}[/tex]

[tex]Slope = -1[/tex]

Using

[tex]Slope = \frac{y - y_1}{x - x_1}[/tex], we can get the equation

Where

[tex]Slope = -1[/tex]

[tex]x_1 = -2[/tex]

[tex]y_1 = 0[/tex]

This gives:

[tex]-1 = \frac{y - 0}{x -(-2)}[/tex]

[tex]-1 = \frac{y}{x +2}[/tex]

Cross multiply

[tex]y = -x - 2[/tex]

Take x as 0; to solve the y intercept

[tex]y = -0 - 2[/tex]

[tex]y = -2[/tex]

Take y as 0; to solve the x intercept

[tex]0 = -x -2[/tex]

[tex]x = -2[/tex]

Answer:Answer:

--- y intercept

---- x intercept

--- equation

Step-by-step explanation:

Given

Represent temperature with y and time with x

When

Solving Slope;

Using

, we can get the equation

Where

This gives:

Cross multiply

Take x as 0; to solve the y intercept

Take y as 0; to solve the x intercept

Step-by-step explanation: