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? asked in Science & MathematicsMathematics · 5 years ago

Find the rate of change from 1 -3 : f(x)= -3x^2 + 5x?

Does it want me to plug in one for x and solve, and then two for x and solve, etc?

2 Answers

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  • Ahmed Aba
    Lv 6
    5 years ago

    ( (-3(3)^2 +5(3) ) - (-3(1^2) +5(1) )/(3-1)

    (-3(9) +15)-(-3+5)/2

    (-27+15) -(-2) )/2

    (-12+2)/2

    -10 /2=-5

  • Como
    Lv 7
    5 years ago

    f ` (x) = - 6x + 5

    f ` (1) = - 1

    f ` (-3) = 23

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