Algebra 1- Quadratics Intro Quiz

What is the standard form of a quadratic equation?

• $ax^2+b^2+c$

• $mx+b$

• $ax^2+bx+c$

• $ab^x$

What is the shape of a parabola?

• a straight line

• a u-shape

• a v-shape

• a circle

Parabolas are ________, since it can be split into 2 identical halves.

• skewed

• asymmetrical

• linear

• symmetrical

What is the vertex of a parabola?

• the turning point

• a point on the x-axis

• a point in the negatives

• a point on the y-axis

What is the axis of symmetry?

• the x-axis

• the y-axis

• a vertical line that divides the parabola into two identical halves

• a horizontal line that divides the parabola into two identical halves

What is one way you can find the y-intercept of a parabola?

• substitute 0 for x in the quadratic equation

• substitute 0 for y in the quadratic equation

• solve for y

• solve for x

Which part of the quadratic equation represents the y-intercept?

• the a-term

• the b-term

• the c-term

• the x term

What is the y-intercept of the parabola whose equation is  $y=x^2-4x-5$  ?

•  $-4$  

•  $-5$  

•  $1$  

•  $2$  

Graph the equation $y=x^2-4x-5$   in Desmos. The parabola of this graph will open ________.

• upward

• downward

Graph the equation  $y=-x^2+2x+2$  in Desmos. The graph of the equation opens  ___________. 

• upward

• downward