Someone should talk to meee im hella bored​

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

The graph below shows the height of a projectile t seconds after it is launched. if acceleration due to gravity is -16 ft/s2, which equation models the height of the projectile correctly?

If the ratio of sum of the first m and n terms of an ap is m2 : n2 , show that the ratio of its mth and nth terms is (2m − 1) : (2n − 1).