If you're going 10m/s and it takes 2 seconds to stop, would you stop in time if a tree fell 20 meters in front of you?
2 answers:
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Answer:
(a) y = -4x + 4 (b) y = 2x + 3
<u>solving steps:</u>
note: m refers to slope and y₁ to y point and x₁ to x point
a)
coordinates: (2,-4)
slope: -4
equation:
- y - y₁ = m(x - x₁)
- y - -4 = -4(x-2)
- y = -4x + 8 - 4
- y = - 4x + 4
b)
coordinates: (1,5), (-1,1)
slope:
- 2
equation:
- y - y₁ = m(x - x₁)
- y - 5 = 2(x - 1)
- y - 5 = 2x - 2
- y = 2x - 2 + 5
- y = 2x + 3
We need slope of all lines ?
- J(-5,-1)
- K(0,1)
- L(2,-5)
Slope of JK:-
Slope of KL:-
Slope of JL
<em>x-> points scored by John's team</em>
<em>
</em>
<em>=> 20x=1400</em>
<em>=><u> x=70</u></em>
<em>
<em>=> 20x=1400</em>
<em>=><u> x=70</u></em>