Question

I need help with this.

Answer 1

Answer:

 √125

Step-by-step explanation:

(0,0) (10,5)=(x1,y1) (x2,y2)

 √(x2-x1)²+(y2-y1)²

 √(10-0)²+(5-0)²

 √10²+5²

 √100+25

 √125

Answer 2

Answer:

y = $\frac{1}{2}$x

Step-by-step explanation:

identify two points on the line: (2, 1) (4, 2) to find the slope($\frac{y2 - y1 }{x2 - x1}$) for the line

=> $\frac{2- 1}{4-2}$ => $\frac{1}{2}$

find the y-intercept:

=> 0

substitute the slope and y-intercept into the equation y = mx + b

                                                                                      slope ↑       ↑ y-intercept    

=> y = $\frac{1}{2}$x + 0

=> y = $\frac{1}{2}$x