5.1 properties of quadratic functions

Given f (x) = x² + 5x − 2, what is the x coordinate of the vertex?

• 5

• -5/2

• -2

• -2/5

Given g(x)= x²+5x-7, what is the y-intercept?

• (5, 7)

• (5, -7)

• (0, 5)

• (0, -7)

Given f(x) = -2(x-3)²+6, what is the x-coordinate of the vertex?

• 6

• -2

• 3

• -3

Given h(x)= -2x² - 3x + 4, a is what number?

• -2

• -3

• -3/4

• 4

Given f(x) = 3(x-4)²-2, then a is what?

• -2

• 4

• -4

• 3

Given f(x) = 3(x-4)²-2, then the vertex is what?

• (3, -4)

• (-4, 3)

• (-4, 2)

• (4, -2)

Simplify 2(4-1)²

• 36

• 60

• 18

• no solution

Given f(x) = (x-1)²-3, the function is increasing from ?

• (negative infinity, 1)

• (1, infinity)

• (negative inifinity, -3)

• (-3, infinity)

What form is this quadratic written in? f(x) = 5(x-1)(x+4)

• vertex

• general

• standard

• factored

What form is this quadratic written in? g(x) = 5x² - 6x + 2

• vertex

• general

• standard

• factored