**Question 1:**
Which graph represents a function: $y={\left(\frac{1}{7}\right)}^{x}+1$

**Question 2:**
How many roots are in the equation: ${3}^{x}=x$

**Question 3:**
How many roots are in the equation: ${5}^{x}={x}^{2}$

**Question 4:**
Solve the equation: ${4}^{x}=256$

**Question 5:**
Find the root of the function $y={e}^{(x-3)}-1$
by plotting a graph

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