Look at the picture.
The x-intercepts are where the graph crosses the x-axis, and the y-intercepts are where the graph crosses the y-axis.
x-intercept (-250, 0)
y-intercept (0, 100)
Four times a number would equal 4n
The equation for area of a triangle is A= 1/2bh so a=1/2(12cm)(9.6cm)
700 x .03 x 20 = 420
420 + 700
1120 is in the account after 20 years