Write the equation of the line that models arianna's drive

Can someone factor this fully? my friend and i have two different answers and i would like to know if either of them is right. you in advance. a^2 - b^2 + 25 + 10a

15 there is a line that includes the point 0,10 and has a slope of 7/4. what is it’s equation in slope intercept form

Find the area of the triangle formed by the origin and the points of intersection of parabolas y=−3x^2+20 and y=x^2−16.