Work out the height of this triangle with base, b = 8mm and
area, A = 218.8mm?,

54.7 mm

Step-by-step explanation:

use the formula area= 1/2 base time height

A=1/2bh

54.7mm

Step-by-step explanation:

Area=1/2b×h

218.8=0.5×8×h

218.8=4h

h=218.8÷4

h=54.7

y = - 6

step-by-step explanation:

given the point (- 2, y) lies on the graph then it is a solution of it's equation.

substitute x = - 2 into the equation for value of y

y = 3(- 2) = 3 × - 2 = - 6

the point on the graph is (- 2, 6)