PLS HELP ME :( I'm horrible at math consider the system of equations.

the quadratic equation of the system is graphed below.​

Simone claims the initial value and y-intercept are the same thing on a graph. is she correct? if you know that a line has a slope of and a y-intercept of 7, what is the equation for that line in slope-intercept form?

Which of the functions graphed below has a removable discontinuity?

Gabrielle's age is two times mikhail's age. the sum of their ages is 84. what is mikhail's age?