Evaluate the function f(x)=4*7x for x=-1 and x=2. show your work

Marie drew the triangle shown. she wants to draw a second triangle that is different from this one. use the drop-down menus below to complete the statements about the second triangle.

Given tan∅=4/3 and π< ∅< (3π)/2; find cos2∅ a. -24/25 b. 24/25 c. -24/7 d. -7/25

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x