Standard Form Quadratics and Intercepts

What is the y-intercept?
f(x) = -2x² + 4x - 6

• (0, 6)

• (0, -6)

• (6, 0)

• (-6, 0)

Tags

CCSS.HSF-IF.C.7A

What do we call the highest or lowest point of a quadratic?

• parabola

• vertex

• graph

• point

The standard form of a quadratic function is

• y = ax² + bx + c

• a(x - h)² + k

• y - y₁ = m(x - x₁)

• Ax + By = C

Identify a, b, and c if y = +3x² +5x - 8

• a=3, b=5, c= - 8

• A=3, B=-8, C=5

• A=3x², B=5x, C=-8

• A=3x² , B=-8, C=5x

A ​ (a)   in one variable is an equation that can be written in the ​ (b)   ​ (c)   , where a, b, and c are ​ (d)   and ​ (e)   .

• quadratic equation

• standard form

• real numbers

Which option shows what quadratics in standard form look like?

ax² + bx + c = 0 is the standard form of a quadratic equation.

• True

• False

Which of the following equations matches standard form of a quadratic?

• ax + by = c

• y = a(x - h)² + k

• y = ax² + bx + c

• y = mx + b

• Quadratic equation

• Cubic equation

• Linear equation

• Exponential equation

Which option shows what quadratics in standard form look like?