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Straight lines worksheet

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Straight lines
Level 1 · Function values and slope
Find the value of the function.
1.
f(x)=−4x−4,f(−3)=‾f(x) = -4x - 4,\quad f(-3) = \underline{\hspace{4.5em}}
2.
f(x)=−4x−7,f(−1)=‾f(x) = -4x - 7,\quad f(-1) = \underline{\hspace{4.5em}}
3.
f(x)=−6x,f(4)=‾f(x) = -6x,\quad f(4) = \underline{\hspace{4.5em}}
4.
f(x)=3x−8,f(5)=‾f(x) = 3x - 8,\quad f(5) = \underline{\hspace{4.5em}}
5.
f(x)=−5x+2,f(3)=‾f(x) = -5x + 2,\quad f(3) = \underline{\hspace{4.5em}}
Give the slope k of each line.
6.
y=−3−3xy = -3 - 3x
k=k =
7.
y=5x−8y = 5x - 8
k=k =
8.
y=−9+6xy = -9 + 6x
k=k =
9.
y=−x+2y = -x + 2
k=k =
10.
y=x−4y = x - 4
k=k =
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Answer key
Straight lines · Level 1 · Function values and slope
1.88
2.−3-3
3.−24-24
4.77
5.−13-13
6.k=−3k = -3
7.k=5k = 5
8.k=6k = 6
9.k=−1k = -1
10.k=1k = 1
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