WASHINGTON (AP) — The Federal Reserve intensified its drive to tame high inflation by raising its key interest rate by three-quarters of a point — its largest hike in nearly three decades — and signaling more large rate increases to come that would raise the risk of another recession. The move the Fed announced after its latest policy meeting will increase its benchmark short-term rate, which affects many consumer and business loans. The central bank is ramping up its drive to tighten credit and slow growth with inflation having reached a four-decade high of 8.6%, spreading to more areas of the economy and showing no sign of slowing.