Idon't understand roots and stuff : p i'm dumb meh

It is 5 units.

Step-by-step explanation:

We see in the picture that we can create a right triangle where we do a^2+b^2=c^2, or in other words, the b unit is 4 units to the right, and up three, and 4 and three are a and b...

confusing/bad explanation, but 4^2+3^2=c^2

25=c^2

c=5

5x+10 is the correct one

hope this

c. y = 1/4 x + 5

step-by-step explanation:

first, put the equation of the line on the graph into slope-intercept form

(y = mx + b):   y = -4x + 8

second, a perpendicular line has to have "an opposite/reciprocal slope" to the original slope. so, find the "m" value in your original equation (it's -4, right? )

original slope: m = -4   perpendicular slope: change the sign to its opposite and find the reciprocal ("flip" the number)

new slope is now positive (b/c the original slope was negative 4), and it's 1/4 (not the original slope of 4 or 4/1)