Question

Find the gradients of lines A and B.​ NEED ASAP

Answer 1

Answer:

For a straight-line graph, pick two points on the graph. The gradient of the line = (change in y-coordinate)/(change in x-coordinate) . We can, of course, use this to find the equation of the line. Since the line crosses the y-axis when y = 3, the equation of this graph is y = ½x + 3 .

Step-by-step explanation:

DONT WORRY

Answer 2

Answer:

8 and - 4

Step-by-step explanation:

Calculate the slope m using the slope formula

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

with (x₁, y₁ ) = (0, - 6) and (x₂, y₂ ) = (2.5, 14) ← 2 points on line A

$m_{A}$ = $\frac{14+6}{2.5-0}$ = $\frac{20}{2.5}$ = 8

Repeat with (x₁, y₁ ) = (0, 8) and (x₂, y₂ ) = (2, 0) ← 2 points on line B

$m_{B}$ = $\frac{0-8}{2-0}$ = $\frac{-8}{2}$ = - 4