Grade 9 End of Week 21 Assessment

The points A(-5,-3), B(-2,k) and C(4,3) lie on a straight line. Find the value of k.

The gradient of a line AB is -2, where A is the point (1,-8) and B is a point on the x-axis. Find the coordinates of B.

• (-3,0)

• (0,-3)

• (3,10)

• (-3,10)

Find the distance.

• 9.7
• 10.7
• 11.7
• 12.7

When the line is vertical, the gradient is _____________ .

• Positive

• Negative

• Zero

• Undefined

Which of these lines passes through the point (3, 7)?

• y = 2x + 4
• y = x + 5
• y = x + 10
• y = 3x - 2

Which of these
co-ordinates lie on the line
y = 3x - 8?

• (5, 8)
• (0, 8)
• (2, -2)
• (1, 5)

What is the 𝑦-intercept of the function 3𝑦 = 15𝑥 + 18?

Which of the following pairs has the same slope as that of 𝑦 = 6𝑥 − 4?

• (3, 9), (2, 6)

• (4, 16), (2, 8)

• (2, 8), (4, 20)

• (3, 15), (4, 20)

• (5, 10), (6, 12)