Select the model of the difference (X^2+x-3)-(x^2+2x+2) using tiles. Please help

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

Need solving this second acceleration problem.

Find the commission on a $590.00 sale if the commission is 15%.