To get slope use
y2 - y1 / x2 - x1
10 - 8 / 1 - 0 = 2/1 = 2
Slope = 2
The y-intercept is the coordinate point that has 0 as the x value.
(0, 8) is the y-intercept.
Look at this video: https://www.khanacademy.org/math/cc-fifth-grade-math/cc-5th-fractions-topic/cc-5th-multiplying-fraction-whole-number-product
If he's studying 3/4 hours more everyday, for Friday it will be 1 + 6/8 = 1 and 3/4 hours or 1 hour and 45 minutes.
A solid figure without any base and with only one curved surface is called a circle
