If a stream begins at an elevation of 600 meters and slows a distance of 200 kilometers to the ocean, what is the average gradient

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

Given that the images represent 4 steps in the construction of a line segment congruent to a given line segment, which is step 3 in the construction?