Questions: This table of values represents a linear function. x y ------ -3 14 2 -1 7 -16 a. What is the slope? m= b. What is the y-intercept? b= c. Enter an equation in the form y=mx+b that represents the function defined by this table of values.

This table of values represents a linear function.

 x  y 
------
 -3  14 
 2  -1 
 7  -16 

a. What is the slope? m= 
b. What is the y-intercept? b= 
c. Enter an equation in the form y=mx+b that represents the function defined by this table of values.
Transcript text: This table of values represents a linear function. \begin{tabular}{|c|c|} \hline $\boldsymbol{x}$ & $\boldsymbol{y}$ \\ \hline-3 & 14 \\ \hline 2 & -1 \\ \hline 7 & -16 \\ \hline \end{tabular} a. What is the slope? $m=$ $\square$ b. What is the $y$-intercept? $b=$ $\square$ c. Enter an equation in the form $y=m x+b$ that represents the function defined by this table of values. $\square$
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Solution

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Solution Steps

Solution Approach

To find the slope m m of the linear function, use the formula for the slope between two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2): m=y2y1x2x1 m = \frac{y_2 - y_1}{x_2 - x_1} . Choose any two points from the table to calculate the slope. Once the slope is determined, use one of the points and the slope to solve for the y y -intercept b b using the equation y=mx+b y = mx + b . Finally, write the equation of the line in the form y=mx+b y = mx + b .

Step 1: Calculate the Slope

To find the slope m m of the linear function, we use the formula: m=y2y1x2x1 m = \frac{y_2 - y_1}{x_2 - x_1} Using the points (3,14)(-3, 14) and (2,1)(2, -1): m=1142(3)=155=3.0 m = \frac{-1 - 14}{2 - (-3)} = \frac{-15}{5} = -3.0

Step 2: Calculate the y y -Intercept

Next, we calculate the y y -intercept b b using the slope and one of the points. We can use the point (3,14)(-3, 14): b=ymx=14(3)(3)=149=5.0 b = y - mx = 14 - (-3)(-3) = 14 - 9 = 5.0

Step 3: Write the Equation of the Line

Now that we have both m m and b b , we can write the equation of the line in the form y=mx+b y = mx + b : y=3.0x+5.0 y = -3.0x + 5.0

Final Answer

The slope m m is 3.0-3.0, the y y -intercept b b is 5.05.0, and the equation of the line is: y=3.0x+5.0 \boxed{y = -3.0x + 5.0}

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