Practice problem
Which of the given functions produce a graph that passes the horizontal line test?
f(x)=−∣x∣f(x)=-|x|f(x)=−∣x∣
f(x)=x3−xf(x)=x^3-xf(x)=x3−x
f(x)=16x+4f(x)=16x+4f(x)=16x+4
f(x)=x2−3x+1f(x)=x^2-3x+1f(x)=x2−3x+1
Type a concept, like “slope” or “photosynthesis”.