Do the ratios 2 to 4 and 11 to 11/2 form a proportion?

Find the power series expantion of f(z)=log(4=3z) at the point z=-1

Solve the equation. 2x - 8(x+1)= 6(2x - 3)

Astudent draws two parabolas on graph paper. both parabolas cross the x-axis at (–4, 0) and (6, 0). the y-intercept of the first parabola is (0, –12). the y-intercept of the second parabola is (0, –24). what is the positive difference between the a values for the two functions that describe the parabolas? write your answer as a decimal rounded to the nearest tenth