Part I: Help a Classmate. (a) Explain the geometric meaning of the func- tion f(x) = \\x1. Glue a few specific examples. Draw a number line to sup- plement your explanation. (b) Explain the geometric meaning of the function g(x) = |x - 53). Give a few specific examples. Draw a number line to supplement your explanation. (c) Explain the geometric meaning of the function h(x) = |x + 321. Give a few specific examples. Draw a number line to supplement your explanation. (d) Explain the geometric meaning of the function k(a) = |2 - 12| + |2 - 201. Give a few specific examples. Draw a number line to supplement your expla nation. (e) Give a specific example of an absolute value equation with no solution. Explain why the equation has no solution. (f) Give a specific example of an absolute value inequality with solution set equal to the set of real numbers. Explain. (g) Use your explanation from part (b) to solve the equation g(x) = 18. Include a sketch to help with your explanation. (h) Use your explanation from part (c) to solve the equation h(x) = 18. Include a sketch to help with your explanation. (2) Use your explanation from part (d) to solve the equation k(x) = 8. Include a sketch to help with your explanation.Part II: Help a Classmate. Let P and Q be the points with respective coordinates (5, 2) and (2, 5). (a) Use point-slope to nd an equation of the line through P and Q. Then clear the fractions and write the equation in standard form Aa' 1 By = C, where A, B, and C are integers. Do not use decimals in your solution. (b) Find an equation of the circle centered at the origin that passes through P and Q. (c) Find equations of the tangent lines to the circle at P and Q. (d) Find the coordinates of the point Z where the tangent lines from part (c) intersect. (e) What do you notice about the relationship between the coordinates of Z and the equation of the line PQ? (f) Plot the points P, Q, Z, the circle, and the three lines in Desmos as a check. (g) Optional Repeat parts (a)( f ) for the general points P and Q having respective coordinates (a, b) and (b, a). Dene a and b as sliders in Desmos. Move the sliders to check that your computations are correct