If x and y are variables and b and m are constants, which of these functions is linear? Assume that m +0.
y = mx + b
y=mx^2 + b
y=m^x+ b
y=x^m+ b

What is the value of x? enter your answer in the box. photo attached.

During a bike challenge riders have to collect various colored ribbons each 1/2 mile they collect a red ribbon each eighth mile they collect a green ribbon and each quarter mile they collect a blue ribbion wich colors of ribion will be collected at the 3/4 markrer

Evaluate the discriminant of each equation. tell how many solutions each equation has and whether the solutions are real or imaginary. x^2 - 4x - 5 = 0