I’m trying to figure out how to find y intercept Point slope form: y-7=4(x+2)

Slope intercept form:
Y=(1/2)x-3

I just need someone to explain the process of finding the y intercept and the slope from these types of equations

Abcd is a parallelogram find the valuse of x

Which of the following is true for the relation f(x)=2x^2+1

At the "no mutants allowed" country farm, every sheep has 4 legs, every chicken has two legs, and all animals have only 1 head. asked to count how many sheep and chicken are in the fields, a farm boy reports back that there are 140 feet and 50 heads. how many sheep and chicken are there? there are sheep and chicken at the farm.