Which of the quadratics has a graph with only one x-intercept? A) y = 2x2 + 4 B) y = x2 - 8x + 16 C) y = 2x2 - 8x + 20 D) y = - 2 (x - 1) 2 + 2

Question

Yadiel Brown

Mathematics

9 September, 17:59

Which of the quadratics has a graph with only one x-intercept? A) y = 2x2 + 4 B) y = x2 - 8x + 16 C) y = 2x2 - 8x + 20 D) y = - 2 (x - 1) 2 + 2

+3

Answers (2)

Know the Answer?

Mina Hart · Answer 1

I think its D but I'm assuming that the 2 to the right of the bracket was mistake. every quadratic equation (x^2) has two roots (2 x intercepts) so find the equation without an x^2

Tuffy · Answer 2

There is a math app called desmos past the graph equations and it will show you the answer. But i will comment below and tell you the answer if you don't want to