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Section 2.4 Linear Functions and Slope Answer the following questions: a. The x-coordinate of a point where a graph crosses the x-axis is called alan The y-coordinate of such a point always has a value of (2 points) b. The y-coordinate of a point where a graph crosses the y-axis is called alan The x-coordinate of such a point always has a value of (2 points) c. The slope, m, of a line through the distinct points (x,, y,) and (X2, yz) is given by (1 point) d. The slope of a horizontal line is (1 point) e. The slope of a vertical line is (1 point) 2. Find the equation of the line using slope intercept form, satisfying the given information. a. (-1, 4) and (5, 2) (2 points) b. f(-5) = -4 and f(5) = 2 (2 points) 3. Find the equation of each line L,, L2, and Ly- (3 points)