Find the y-intercept of f(x)=3x^2 -2x-8

Find the equation of the line that goes through the points (4, –1) and (2, –5). use slope formula,equation,to find the slope of a line that passes through the points. m = use slope-intercept form, y = mx + b, to find the y-intercept (b) of the line. b = write the equation in slope-intercept form, y = mx + b.

The volume of a cube is 8 in to the 3rd power. how long is each side?

Answer! if you don’t mind, can you explain