x = -b ± √(b)2 – 4ac / 2a
Does the graph of y = -6x2 - 2x + 2 open upward or downward?
Downward
Find the axis of symmetry of y = 3x2 + 12x + 2
Find the vertex of y = x2 + 2x
Find the x values of 2x² + 3x - 5 = 0
Is this function exponential, linear, or quadratic?
x values: 0, 1, 2, 3, 4
y values: -5, -15, -45, -135, -405
(hint: make a table with the values if you need to!)
Find the axis of symmetry of -3x2 + 10x +9
Find the vertex of y= -3x² + 4
Find the x values of 2x = x2 - 3
Is this function exponential, linear, or quadratic?
x values: -10, -9, -8, -7, -6
y values: -400, -324, -256, -196, -144
(hint: make a table with the values if you need to!)
Find the vertex of y= 2x² - 4x - 6
Find the x values of x2 - 6x = -9
Is this function exponential, linear, or quadratic?
x values: -9, -8, -7, -6, -5
y values: 81, 64, 49, 36, 25
(hint: you can make a table with the values if you need to!
Find the vertex of 3x2 - 5
Find the vertex of y - 8x = 16 - x²
Find the x values of x2 + 3x - 7 = 0 to the nearest hundredths place
Is this function exponential, linear, or quadratic?
x values: -4, -3, -2, -1, 0
y values: -20, -14, -8, -2, 4
(hint: you can make a table with the values if you need to!)