Math Problem Statement

Which function represents the relationship between the x and y values listed in the table?

Solution

To solve this problem, we need to find the linear function that fits the points given in the table.

The table provides the following points:

(4,10), (2,7), (6,5)(-4, 10),\ (-2, 7),\ (6, -5)

Step 1: Calculate the slope of the line (m).

The formula for the slope mm between two points (x1,y1)(x_1, y_1) and (x2,y2)(x_2, y_2) is:

m=y2y1x2x1m = \frac{y_2 - y_1}{x_2 - x_1}

Let's use the points (4,10)(-4, 10) and (2,7)(-2, 7) first:

m=7102(4)=32+4=32m = \frac{7 - 10}{-2 - (-4)} = \frac{-3}{-2 + 4} = \frac{-3}{2}

The slope mm is 32-\frac{3}{2}.

Step 2: Check the slope with other points.

Now, let's check the slope using the points (2,7)(-2, 7) and (6,5)(6, -5):

m=576(2)=126+2=128=32m = \frac{-5 - 7}{6 - (-2)} = \frac{-12}{6 + 2} = \frac{-12}{8} = \frac{-3}{2}

The slope is consistent, so the slope of the line is indeed m=32m = -\frac{3}{2}.

Step 3: Use the point-slope form to find the equation.

We can use the point-slope form of the equation:

yy1=m(xx1)y - y_1 = m(x - x_1)

Using the point (4,10)(-4, 10) and the slope m=32m = -\frac{3}{2}, we plug in the values:

y10=32(x(4))=32(x+4)y - 10 = -\frac{3}{2}(x - (-4)) = -\frac{3}{2}(x + 4)

Distribute the 32-\frac{3}{2}:

y10=32x6y - 10 = -\frac{3}{2}x - 6

Now solve for yy:

y=32x+4y = -\frac{3}{2}x + 4

Step 4: Check the answer.

The correct equation is:

y=32x+4y = -\frac{3}{2}x + 4

So the correct

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Math Problem Analysis

Mathematical Concepts

Linear Functions
Slope Calculation

Formulas

Slope formula: m = (y2 - y1) / (x2 - x1)
Point-slope form: y - y1 = m(x - x1)

Theorems

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Suitable Grade Level

Grades 8-10