Can you guys help me find the slope for the given graph and y-intercept
(pictures included)

He expression 2(l + w) is used to calculate the perimeter of a rectangle, where l is length and w is width. if the length is fraction 2 over 3 unit and the width is fraction 1 over 3 unit, what is the perimeter of the rectangle in units? fraction 2 over 3 unit 1 unit 1fraction 2 over 3 units 2 units

The parabola y = x² - 4 opens: a.) up b.) down c.) right d.) left

Evaluate the expression for the given value of the variable. 5×(h+3) for h=7