6th grade math yo halp me

Mr. walker gave his class the function f(x) = (x + 3)(x + 5). four students made a claim about the function. each student’s claim is below. jeremiah: the y-intercept is at (15, 0). lindsay: the x-intercepts are at (–3, 0) and (5, 0). stephen: the vertex is at (–4, –1). alexis: the midpoint between the x-intercepts is at (4, 0). which student’s claim about the function is correct?

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68