Greg has entered a cycle race of 125 km. he rides the first 85 km in 2.5 hours. he rides the rest of the way in 2 hours. How muc
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<span>We write pattern linear function
f(x) = ax + b
</span><span>Both points must be in one straight line so they can be used to lay the system of equations .
Points A=(4,4), B = (-1,5)
x y x y
</span>
<span>We insert the calculated a and b in the equation f(x) = ax + b
</span>
<span>Since a> 0, the function is decreasing</span>
f(x) = ax + b
</span><span>Both points must be in one straight line so they can be used to lay the system of equations .
Points A=(4,4), B = (-1,5)
x y x y
</span>
<span>We insert the calculated a and b in the equation f(x) = ax + b
</span>
<span>Since a> 0, the function is decreasing</span>