Are f(x) = 3x - 10 and 2x + 7y = 28 both functions, if not which one isn't and why?

An alien has just landed from the planet, iksnimak. he would like to leam how to add two fractions when thedenominators are the same. write a paragraph that explains to our alien friend, in your own words, the detailsabout how to add the fractions, how to change the result to a mixed number, and how to reduce the fractionpart. use this problem as your example: the two fractions are 5/8 & 7/8

What is f(3) for the quadratic function f(x)= 2x^2+ + x - 12

What is the point-slope form of the equation for the line with a slope of -2 that passes through (1,4)?