Find the equation of a line that passes through the point (-2,4) and has a gradient of -3.

-3x - 2

Step-by-step explanation:

the gradient is given as -3 so -3x

we can extrapolate the line. so if it's 4 at -2 then when it crosses the y axis it's (4-3-3 ) -2. we can also use the equation but that's harder to explain.

answer: i'm not going to give you the answer, but some hints to work it out.

step-by-step explanation: so, if there is a straight line that means that the line angle is 180°. so we subtract the 2 angle measures provided, (15 and 38) from 180. so the answer is 180 - (38 + 15). (you have to solve the equation)

answer: c.  

step-by-step explanation:

mixtures containing substances that get attracted to magnet can be separated using a magnet. we can separate iron from a mixture of sand and iron, as only iron attracts to the magnet.