Piecewise Equation???

Question 101 points)which equation in slope-intercept form represents the line that passes through (5, 1) and(-4,7)

Which statements are true? check all that apply. the line x = 0 is perpendicular to the line y = –3. all lines that are parallel to the y-axis are vertical lines. all lines that are perpendicular to the x-axis have a slope of 0. the equation of the line parallel to the x-axis that passes through the point (2, –6) is x = 2. the equation of the line perpendicular to the y-axis that passes through the point (–5, 1) is y = 1.

Which expression is rational? 6. , square root two, square root 14, square root 49