Graphing Exponential and Logarithmic Functions

Steps:

• f(x)=2x+1=0f(x)=2x+1=0
• 2x+1=02x+1=0
• So, x+1=−∞x+1=−∞
• x=−∞x=−∞
• Therefore, the x-intercept of the function f(x)=2x+1f(x)=2x+1 is −∞−∞.
• To find the y-intercept of the graph of an exponential function, we need to plug in x = 0 in it.