Getting Ready to Solve Quadratics
Gwen Bennett Getting Ready to Solve Quadratics
Complete this worksheet
Which expression is equivalent to 64-x^2?
(8-x)(8-x)
(8-x)(8+x)
(x+8)(x+8)
(x-8)(x+8)
True or False. The numbers 2 and -3 are zeros of the equation x^2 - 5x + 6 = 0
True
False
Which quadrant contains the vertex of the following: f(x) = -2x^2 - 8x + 11?
1st
2nd
3rd
4th
The equation of the axis of symmetry of the graph of
y=2x^2-3x+7 is
x = -3/4
y = 3/4
x= 3/4
y = 3/2
Two functions are shown below. Which function has the largest y-intercept?
f(x)
g(x)
Which expression is equivalent to (x) raised to the 1/2 power?
square root of x
1/x
x^2
The drama club is selling tickets for a play. The profit, y is modeled by the equation, y=x^2 - 40x - 3200, where x is the number of tickets sold. What is the total number of tickets, x, that need to be sold for the drama club to break even (profit = $0)
40 tickets
80 tickets
100 tickets
25 tickets
Jill is solving the equation below. Which step did she make her 1st mistake?
5x2 - 170 = -90
+90 +90 STEP 1
5x2 – 80 = 0
5(x2 – 16) = 0 STEP 2
5(x – 4)(x – 4) =0 STEP 3
x – 4 = 0 x – 4 = 0 STEP 4
x = 4
Step 1
Step 2
Step 3
Step 4
