Find the equation of a line that passes through the point (2,1) and has a gradient of 2 leave your answer in the form of y=mx+c

y= 2x - 3

Step by step solution:

Y = mx + c  

Where

y= y coordinate

m = gradient (it is known as steepness of the slope)

x= x coordinate  

c = y intercept  

m = 2

c = ?

x = 2

y = 1

Substitute the values in the above equation  

y = mx + c  

1 = 2 (2) + c

1 = 4 + c

1 – 4 = c

-3 = c

y = 2x - 3

hi there!

step-by-step explanation:

a roof pitch is basically for every inch rise there is 12 inches run.

the height of the roof is also known as the rafter.

formula: rafter^2 = rise^2 + run^2

rafter^2 = 5^2 + 12^2

rafter^2 = 25 + 144

rafter ^2 = 169"^2

the height of the roof from the lowest point to the highest point is 169"^2.

hope this : )