Can someone explain this a little better and reccommend a graph. answer quickly due friday : ).

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

What is the y-intercept of the line given by the equation

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (-4, 0) and (6,0). the y-intercept of thefirst parabola is (0, –12). the y-intercept of the second parabola is (0-24). what is the positive difference between the avalues for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth.