[DONT SPAM PLS] It considers, in an orthogonal and monometric reference, the points E (−4,3) and F (1, −5). Write, presenting all the calculations, the equation of the EF line. It is supposed to first determine the slope of the line I already made, then determine the ordinate at the origin which is where I am stuck and then write the equation of the line. Sorry about my english

the sum of all the angles in a triangle are equal to 180

so you can add   the 3 given angles together to equal 180:

5y + 2y + 2y = 180

or since all three angles have the same letter, combine the 3 angles to equal 180:

9y = 180

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b