Find the gradient of the line 2y -8x = -2 Find the y-intercept of the line 3y=-15x -15
Does the point (3,15) lie on the line y=10+2x?
25 points to whoever answers all of them

Step-by-step explanation:

1. In order to find the gradient of equation, you have to make it into slope-form equation y = mx + b :

So m represents gradient. In this question, m is 4.

2. Make it into slope-form equation :

In this question, y-intercept is b which is -5.

3. You have to substitute x-coodinate into the equation to see whether it is equal to y-coordinate :

f(x) = x^3 -2x^2 -3x

x( x^2 -2x-3)

x( x^2 +x -3x -3)

x( x(x+1) -3(x+1))

x( x-3)( x+1)

so zeroes are 0, 3,-1

its (2) option

answer;

the correct answer

just use google you beautiful person.

have a nice day < 3