SAT Math Practice Question #31485 - SATify | SATify
#31485
systems
quadratic equations
equations
medium
80 sec
The graph of the quadratic function f(x)=−2x2+kx−8, where k>0, intersects the x-axis at exactly one point. What is the value of k?
• Up to 5 characters (6 if negative). Only numbers, decimal (.), fraction (/), negative (-). • Fractions must be in lowest terms. • Mixed numbers must be converted to improper fractions.
