Which of the following is a point in the graph as described by the function
Y=(2x+1)^2-4
3 answers
The function is a parabola that opens upwards. The vertex is at the point (-0.5, -4).
Is it not (-1,-3)?
Let's check by substituting x = -1 into the function to find the corresponding y value:
Y = (2(-1) + 1)^2 - 4
Y = ( -2 + 1 )^2 - 4
Y = (-1)^2 - 4
Y = 1 - 4
Y = -3
Therefore, the point (-1, -3) is correct. Thank you for pointing that out!
Y = (2(-1) + 1)^2 - 4
Y = ( -2 + 1 )^2 - 4
Y = (-1)^2 - 4
Y = 1 - 4
Y = -3
Therefore, the point (-1, -3) is correct. Thank you for pointing that out!
1 answer