Atrough is 32 feet long and a cross section has the shape of an isosceles trapezoid that is 44 feet wide at the top and 40 feet wide at the bottom. the trough is 16 feet deep. if the trough is filled wih water at the rate of 40 feet3/hour, how fast is the water level rising when the water is 12 feet deep?

Abit confused about what you mean, but i think you might be referring to slope intercept form: y = mx + bin that case b, or the y intercept is already given.(0,-1)find the slope by using the formulay2 - y1/x2 - x1the final slope will be 4/2, equivalent to 2.now your equation should look like thisy = 4/2x -1sorry if this didn’t you out!

Where’s the problems ? ?

Answerthe simplified expression isexplanationthe given expression is,let us deal with the bracket first.the two negatives in the parenthesis will become positive.the expression now becomes,we now expand the parenthesis to get,we group like terms to obtain,this simplifies to,