Intercepts of Quadratics

Which one are we looking for?

Jaiden wanted to know the initial height of a baseball when it was hit at home plate.

• x at vertex

• y at vertex

• positive zero

• y-intercept

Calculate the zeros of the quadratic.

• x = 2 and -3

• x = 0 and 9/4

• x = 0 and 4/9

• x = 1/2 and 1/3

Tags

CCSS.HSA-REI.B.4B

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

Find the zeros of this quadratic.

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

How many solutions does this graph have?

• one

• two

• no solutions

• cannot be determined

What is the equation for this parabola in factored form?

• y=(x+2)(x-1)

• y=(x-2)(x+1)

• y=(x-2)(x-1)

• y=(x+2)(x+1)

Tags

CCSS.HSF-IF.C.7A

Write an equation of this graph in intercept (factored) form.

• h(x) = (x - 1)(x + 3)

• h(x) = (x + 1)(x - 3)

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

What is the quadratic function for the graph in intercept form?

• y = (x - 2)(x - 6)

• y = - (x - 2)(x - 6)

• y = (x + 2)(x + 6)

• y = (x + 4)(x - 4)

Tags

CCSS.HSF-IF.C.7A

Which equation is the intercept form of a quadratic function?

• f(x) = mx + b

• f(x) = a(x - p)(x -q)

• f(x) = ax² + bx + c

• f(x) = a(x - h)² + k

When a quadratic is written in intercept/factored form, what are the two values we solve for called.

• y-intercepts

• x-intercepts

• axis of symmetry

• What's a quadratic?

Tags

CCSS.HSF-IF.C.7A