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? asked in Science & MathematicsMathematics · 9 years ago

Help!!!!! asap!!!!! math?

If g(x)=-7x+2, find g(-6) a.) -44 b.)-40 c.) 8/7 d.) 44

Determine the slope of the line that passes through the points (-4,-2) and (-1,-1) a.)1/3 b.)-3/5 C.)-1 D.)-5/3

Solve the system of equations y=2x-10 and x-y=7

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  • Aleko
    Lv 6
    9 years ago

    Answer d since g(-6)=-7(-6)+2=44

    Answer a because y=mx+c take the first co-ordinates -2=m(-4)x+c now the other co-ordinates

    -1=m(-1)x+C

    solve simultaneously to get m=1/3

    y=2x-10 and y=x-7 solving simultaneously we have x=3 and y=-4

  • Elly Peters
    9 years ago

    g(x) = -7x+2

    g(-6) = -7(-6) +2

    =42+2

    =44 (D)

    (-4,-2)(-1,-1)

    -1-(-2) / -1-(-4)

    -1+2 / -1+4

    1/3 (A)

    y=2x-10

    x-y=7

    from second equation

    x=7+y

    sub into first equation

    y= 2(7+y) -10

    y= 14 + 2y - 10

    -y = 4

    y= - 4

    sub y = - 4 into second equation

    x = 7 + ( - 4 )

    x = 3

    (3, -4)

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