Suppose that 4 J of work is needed to stretch a spring from its natural length of 26 cm to a length of 43 cm. (a) How much work is needed to stretch the spring from 30 cm to 35 cm? (Round your answer to two decimal places.)
J
(b) How far beyond its natural length will a force of 10 N keep the spring stretched? (Round your answer one decimal place.)
cm

Which shows the image of rectangle abcd after the rotation (x, y) → (–y, x)?

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?

Find │–14│ a. 14 b. –14 c. start fraction 1 over 14 end fraction