Given point (1,2) and a slope of -2/3 find the y intercept a
8/3
b
7/5
c
5/7
d
2/9
this is the question I am not looking for answers I just want to know how to find the y intercept with a given point and a slope I cant figure out how to do it in desmos graphing calculator

step-by-step explanation:

we are given

since, we have to isolate x on anyone side

so, we can move all x terms on one side

subtract both sides by 2x

add both sides by 9

divide both sides by 4

we get

we can set up an equation to find the girls' ages. the equation is         28=0.5x-5+x. (comment if you need me to explain how i got this equation.) so, you add x and 0.5x to get 1.5x and add 5 to each side. your new equation is 33=1.5x. now divide both sides of the equation by 1.5 to get 22=x. because x is mary's age, to find jasmine's age we subtract mary's age from 28. we find that mary is 22 years old and jasmine is 6 years old.