Question

Which equation is a quadratic equation?

y = −4(3x + 2)

y + 3x^3 = (x − 2)(3x + 8)

y − 3 = (2x^2 + 11)(x − 1) + 3x

y + 5x = −2x(4 − x) + 1

Answer 1

the fourth one

Answer 2

y + 5x = −2x(4 − x) + 1 because simplify it and u will get its degree two

Answer 3

y=-5x-8x+2x^2+1

Answer 4

Thanks... can you guys help me with this one please


Determine whether the graph of y = x2 − 6x + 3 has a maximum or minimum point, then find the maximum or minimum value.

Minimum; (-6, 3)

Maximum; (-6, 3)

Minimum; (3, -6)

Maximum; (3, -6)

Answer 5

i need help with this one :)

Answer 6

differentiate the above equation first and see what you get you'll get y=2x-6

Answer 7

now aging differentiate that equation y''= 2

Answer 8

so

Answer 9

now whatever is the point , function always remains at minimum since y'' is always>0

Answer 10

so minimum (-6,3)