During a fireworks display, a rocket is shot, and the motion is modelled by the equation h(t) = -4.9t^2 + 30.2 t + 2.8. Determine the velocity and the acceleration of the rocket at 4 s.

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!

If jon had $4.00 then takes away $2.25, then he should have $1.75 left. $4.00 - $2.25 = $1.75 hope this ; )