Ineed on part a and b. on part a “which point on the number line best represents - 6/8”. on part b which point on the number line best represents 15/12

Part A: B, Point B

Part B: D, Point D

Step-by-step explanation:

to find -6/8 on a number line, convert it to a decimal by dividing the numerator by the denominator, in which you will get -0.75.

-0.75 is smaller than -1, but greater than -1/2 which in its decimal form is -0.5.

to find 15/12 on a number line, you can simplify the fraction to 5/4 using a LCM and then divide the numerator by the denominator. or, you can just divide the numerator by the denominator without simplifying. as a decimal, 15/12 is 1.25.

1.25 is greater than 1, and smaller than 3/2 which is equal to 1.5 as a decimal

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.