Practice problem
Which of the following functions are continuous?
f(x)=5x+3f(x) = 5x + 3f(x)=5x+3
f(x)=sin(x)f(x) = \text{sin}(x)f(x)=sin(x)
f(x)=1xf(x) = \frac{1}{x}f(x)=x1
f(x)={2x−4x<5−x+6x≥5f(x) = \begin{cases} 2x-4 & x < 5 \\ -x + 6 & x \ge 5 \end{cases}f(x)={2x−4−x+6x<5x≥5
f(x)={2xx<28xx≥2f(x) = \begin{cases} 2^x & x < 2 \\ \frac{8}{x} & x \ge 2 \end{cases}f(x)={2xx8x<2x≥2
Type a concept, like “slope” or “photosynthesis”.