Timothy thinks the price of apples is increasing at the local grocery store. He decides to collect data on apple prices every week. After collecting data, he runs a linear regression and calculates the regression equation a(t) = 0.46 +0.097, where a (t) is the cost of an apple in dollars and t represents the
number of weeks
What is the y-intercept of the regression equation? What does it represent in the context of the situation?

I've been working on this for a few days and i just don't understand, it's due in a few hours. you. the direction of a vector is defined as the angle of the vector in relation to a horizontal line. as a standard, this angle is measured counterclockwise from the positive x-axis. the direction or angle of v in the diagram is α. part a: how can you use trigonometric ratios to calculate the direction α of a general vector v = < x, y> similar to the diagram? part b suppose that vector v lies in quadrant ii, quadrant iii, or quadrant iv. how can you use trigonometric ratios to calculate the direction (i.e., angle) of the vector in each of these quadrants with respect to the positive x-axis? the angle between the vector and the positive x-axis will be greater than 90 degrees in each case. part c now try a numerical problem. what is the direction of the vector w = < -1, 6 > ?