Question

Determine o valor de k para que a função f(x)=5x+k-3:

a) intercepte o eixo das abcissas em -2

b) intercepte o eixo das ordenadas em 7

Answer 1

$a)\\\\f(x)=0\\\\0=5\cdot(-2)+k-3\\\\0=-10+k-3\\\\\boxed{k=13}\\\\----------\\\\b)\\\\x=0\\\\7=5\cdot(0)+k-3\\\\7=k-3\\\\\boxed{k=10}$