exam Maths Puzzle Numerical Ability

How do I find the slope of the line passing through the points
(-9,-1) and(-2,-1)? My answer is 7, am I right?

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exam Other Question

A ball is thrown downward from a window in a tall building . its position at time t in seconds is s=16t^2+32t s is in feet. how long (to the nearest tenth) will is take the ball to fall 149 feet. x^-3/y^2