Write the equation of the line passing through the points (−1, 2) and (3, 4).
a) y = 2x − 2
b) y = 2x − 10
c) y = 1/2x + 5/2
d) y = 1/2x - 5/2

2men and 7 boys can do a piece of working 4 days.it is done by 4 men and 4 boys in 3 days how long would it take for 1man or one boy to do it alone

Achemist has 200 ml of a 10% sucrose solution. she adds x ml of a 40% sucrose solution. the percent concentration, y, of the final mixture is given by the rational function: the chemist needs the concentration of the final mixture to be 30%. how many milliliters of the 40% solution should she add to the 10% solution to get this concentration?

Which equation represents the function on the graph?