If the equation of a line is y= - 2/3 x - 2 at what.point on the graph would I find the y- intercept?
2 answers:
<em>Let y = mx +b, where m is the slope of the equation and b is the y-intercept.</em>
<em>So from the equation </em> <em>You'd find the y-intercept at (0,2). Alternative way, you can find the y-intercept by substituting x = 0 so -2x/3 will be 0 because x = 0 and -2x(0)/3 = 0-2 = -2.</em>
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<em>So from the y = mx + b, you would find the y-intercept at (0,b)</em>
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Step-by-step explanation:
We have, Sorin hits a cricket ball straight up into the air. After 1.5 s, the ball is falling straight down with a speed of 6.5 m/s.
We want to find the initial vertical velocity of the ball.
The relation between initial speed, final speed, acceleration and time is given by using first equation of kinematics. Let v₀ is the initial speed. So,
Here, v = -6.5 m/s, t = 1.5 s and a = -g
So, the initial velocity of the ball is 8.2 m/s and the formula used is (1).