Find the gradient of lines A and B

The gradient of lines A is 8 and B is -4

Step-by-step explanation:

As we know, the  gradient of a line is its slope.

The formula to find the slope of a linear line is:

m =

As we can see the line A goes through points:

C (x1, y1) =  (0, -6)

D (x2, y2)=  (2.5, 14)

<=> the slope of line A is:

=

=

=

As we can see the line A goes through points:

E (x1, y1) =  (2, 0)

F (x2, y2)=  (0, 8)

<=> the slope of line B is:

=

= -4

Hence,  the gradient of lines A is 8 and B is -4

38.5

step-by-step explanation:

lets say, first number = r

second number = 3r+7

total = 49

(r)+(3r+7)= 49

4r+7 = 49

4r = 42

r = 42/4

r= 10.5

3r+7 = 3(10.5)+7 = 38.5

hope this

step-by-step explanation:

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