Enable text based alternatives for graph display and drawing entry

Try another version of this question

Approximate the area between the `x`-axis and the graph of `f(x)=x^2 + 1` over the interval `[0,2]` by calculating the sum of the areas of `4` rectangles with equal widths along the interval.

The rectangles should be placed on the `x`-axis and the heights should be the function values at the left endpoint of each subinterval, as shown below.

Area `\approx`  

Round to two decimal places if neccesary.