Graphs 4

2 marks · Normal

A quadratic curve is given by the equation . Find the coordinates of the y-intercept of this curve.

Work this out on paper, then compare with the answer and worked solution below. With a free account you can submit written answers for marking.

Show answer

(0, 1)

Also accept: y = 1 at x = 0; Intercept at (0,1)

Common mistakes: Using x-intercepts; Incorrect substitution

Show mark scheme and worked solution

Marking points

M1 · 1 mark · Substitutes x = 0 into y = 2x^2 - 4x + 1 to find y-intercept.

A1 · 1 mark · Correct answer: (0, 1)

Worked solution

At the y-intercept, . Substitute into the equation:

So the y-intercept is at (0, 1).