If you mean: y = 3x+4 then the slope is 3 and the y intercept is 4
If you mean: y = 3x-4 then it is a straight line equation whose slope is 3 and its y intercept is -4
4
248/4 = 62 so 62 x 4 = 248
Without any equality signs and a missing plus or minus sign the given expressions can't be solved as in an equation.
If you mean: y=3x-4 and the point (2, 1) then the perpendicular equation is 3y=-x+5
This equation is incomplete, and to solve for two variables, you need two equations. So there is no "answer" for this.
If you mean: y = 3x+4 then the slope is 3 and the y intercept is 4
If you mean: y = 3x-4 then it is a straight line equation whose slope is 3 and its y intercept is -4
There can be no solution because there is just an expression - no equation nor inequality.
4
5
It is: 4+62 = 66
No - a smaller number can never be a multiple of a number, only a factor. But 4 is not a factor of 62, either.
62/4 = 15.5
62 - 4 = 58
62