Question

Is the line that passes through the points A(0,1) and B(2,5) parallel to the line that passes through the points C(0,7) and D(4,15)?
Find the slope at AB

Answer 1

Answer:

Slope of AB = 2

Slope of CD = 2

equal slopes means the lines are parallel

Step-by-step explanation:

Use slope formula

m = $\frac{(y_{2} -y_{1} )}{(x_{2} -x_{1} )}$

line AB = $\frac{(5-1)}{(2-0)}$ = $\frac{4}{2}$ = 2

line CD - $\frac{(15-7)}{(4-0)}$ = $\frac{8}{4}$ = 2