Explain why the expressions 1 2x + 1 2x and x are equivalent.

Find an equation of the line perpendicular to the graph of 28x-7y=9 that passes through the point at (4,1)

20 points plus brainliest andwer plus my hover hoard im v desperate ! evaluate the polynomial for x=-2 in the equation -3x^3+7x^2-7x-1 (simplify your answer)

Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2