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Straight lines worksheet

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Straight lines
Level 3 · Equation of a line
Find the equation of the line through the two points, in the form y = kx + m.
1.
(2, −2)(3, −4)(2,\,-2) \qquad (3,\,-4)
y=y =
2.
(−3, −9)(−1, −3)(-3,\,-9) \qquad (-1,\,-3)
y=y =
3.
(−2, 2)(4, 5)(-2,\,2) \qquad (4,\,5)
y=y =
4.
(−2, 8)(0, 4)(-2,\,8) \qquad (0,\,4)
y=y =
5.
(2, 9)(5, 12)(2,\,9) \qquad (5,\,12)
y=y =
6.
(−2, 10)(0, 0)(-2,\,10) \qquad (0,\,0)
y=y =
7.
(1, 1)(3, −3)(1,\,1) \qquad (3,\,-3)
y=y =
8.
(−1, 9)(0, 6)(-1,\,9) \qquad (0,\,6)
y=y =
9.
(2, −5)(4, −15)(2,\,-5) \qquad (4,\,-15)
y=y =
10.
(−2, 9)(−1, 5)(-2,\,9) \qquad (-1,\,5)
y=y =
Answer key
Straight lines · Level 3 · Equation of a line
1.y=−2x+2y = -2x + 2
2.y=3xy = 3x
3.y=12x+3y = \frac{1}{2}x + 3
4.y=−2x+4y = -2x + 4
5.y=x+7y = x + 7
6.y=−5xy = -5x
7.y=−2x+3y = -2x + 3
8.y=−3x+6y = -3x + 6
9.y=−5x+5y = -5x + 5
10.y=−4x+1y = -4x + 1