A ball is thrown from a point 6 metres above the ground. The graph shows the height of the bake above the ground in metres. Esti
mate the speed of the ball in m/s after 1 second. You must show working.
1 answer:
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Firstly, subtract 2 from all sides of this inequality:
Next, divide by 2 on all sides of the inequality and <u>your answer will be </u>
Answer:
Step-by-step explanation:
As x = 0 is a zero, (x + 0) is a factor.
Dividing the equation by (x + 0) leaves x² - 9x + 20.
Factoring this polynomial
x² - 9x + 20 = (x - 4)(x - 5)
x - 4 = 0
x = 4
x - 5 = 0
x = 5
The zeros are at 0, 4, and 5.
Which can be verified by using a plotting calculator.
